question_id int64 3.53k 4.67k | answer stringclasses 10
values | category stringclasses 1
value | prompt stringlengths 310 2.1k |
|---|---|---|---|
3,526 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
An unknown substance is found to have a high melting point. In addition, it is a poor conductor of ... |
3,527 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Which of the following has an octet of electrons around the central atom?
A. BF3
B. BeF2
C. PF5
D.... |
3,528 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
How many milliliters of 0.250 M KOH does it take to neutralize completely 50.0 mL of 0.150 M H3PO4?... |
3,529 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Consider the Lewis structures for the following molecules: CO2, CO32-, NO2-, and NO3-. Which molecu... |
3,530 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Which net ionic equation below represents a possible reaction that takes place when a strip of magn... |
3,531 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The simplest alkene has
A. cis-trans isomers
B. at least four sigma bonds
C. no sigma bonds
D. a t... |
3,532 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Hypochlorous acid is an unstable compound, and one of the decomposition products is chlorine gas, C... |
3,533 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
An ideal solution is a
A. mixture where the solvents cannot be dissolved in any ratio
B. mixture t... |
3,534 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Which of the following is incorrectly named?
A. MgO magnesium oxide
B. AgNO3 silver nitrate
C.... |
3,535 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A 50.0 mL sample of 0.0025 M HBr is mixed with 50.0 mL of 0.0023 M KOH. What is the pH of the resul... |
3,536 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Helium effuses through a pinhole 5.33 times faster than an unknown gas. That gas is most likely
A.... |
3,537 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the maximum value of the z-component of the spin angular momentum of 43Ca? [I = 7⁄2]
A. 10... |
3,538 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the strength (B1) of a 13C 90° pulse of duration 1 μs?
A. 15.4 mT
B. 25.7 mT
C. 5.18 mT
D.... |
3,539 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A radioactive isotope, which is used in diagnostic imaging, has a half-life of 6.0 hours. If a quan... |
3,540 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The +1 oxidation state is more stable than the +3 oxidation state for which group 13 element?
A. A... |
3,541 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The molecular geometry of thionyl chloride, SOCl2, is best described as
A. tetrahedral
B. Bent
C. ... |
3,542 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the relative occupancies of the α and β spin energy levels for a radical species with g =... |
3,543 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the NMR frequency of 31P in a 20.0 T magnetic field?
A. 310.2 MHz
B. 500.5 MHz
C. 275.0 MH... |
3,544 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
An electron confined to a metallic nanoparticle is modelled as a particle in a one-dimensional box ... |
3,545 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate $\Delta_{\mathrm{r}} G^{\ominus}(375 \mathrm{~K})$ for the reaction $2 \mathrm{CO}(\mathr... |
3,546 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Suppose that the normalized wavefunction for an electron in a carbon nanotube of length $L=10.0 \ma... |
3,547 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The chemical shift of the $\mathrm{CH}_3$ protons in acetaldehyde (ethanal) is $\delta=2.20$ and th... |
3,548 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
When ultraviolet radiation of wavelength $58.4 \mathrm{~nm}$ from a helium lamp is directed on to a... |
3,549 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
For an electron in a certain rectangular well with a depth of $20.0 \mathrm{eV}$, the lowest energy... |
3,550 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
For the $\mathrm{H}_2$ ground electronic state, $D_0=4.4781 \mathrm{eV}$. Find $\Delta H_0^{\circ}$... |
3,551 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The $J=2$ to 3 rotational transition in a certain diatomic molecule occurs at $126.4 \mathrm{GHz}$,... |
3,552 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the percentage difference between $\ln (1+x)$ and $x$ for $x=0.0050$
A. 2.490 %
B. 3.750... |
3,553 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The mean temperature of the earth's surface is $288 \mathrm{~K}$. What is the maximum wavelength of... |
3,554 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The temperature of the fireball in a thermonuclear explosion can reach temperatures of approximatel... |
3,555 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25 bar. Unless otherw... |
3,556 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data a... |
3,557 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data a... |
3,558 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data a... |
3,559 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume that all gases are perfect and that data refer to 298.15 K unless otherwise stated. A sample... |
3,560 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume that all gases are perfect and that data refer to 298.15 K unless otherwise stated. Calculat... |
3,561 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume that all gases are perfect and that data refer to 298.15 K unless otherwise stated. Calculat... |
3,562 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume that all gases are perfect and that data refer to 298.15 K unless otherwise stated. Consider... |
3,563 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Assume that all gases are perfect and that data refer to 298.15 K unless otherwise stated. Consider... |
3,564 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A gas of molecular weight 58 was found to contain 82.8% C and 17.2% H. What is the molecular formul... |
3,565 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the pH of a solution whose hydrogen ion concentration is 2.7 × 10^-6 M.
A. 4.70
B. 5.57
... |
3,566 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Hemoglobin, the protein responsible for carrying oxygen from the lungs to the body tissues, contain... |
3,567 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Solid ammonium nitrate,amitol, is much used as an explosive; it requires a detonator explosive to c... |
3,568 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A chemist has a piece of foil that is approximately 5 × 10^4 atoms thick. If an alpha particle must... |
3,569 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Solve x^2 - 7x + 10 = 0.
A. 3, 4
B. 1, 3
C. 4, 6
D. 6, 1
E. -5, -2
F. -2, 5
G. 7, 9
H. 5, 2
I. 0, ... |
3,570 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the total binding energy of _6C^12 and the average binding energy per nucleon?
A. 98MeV an... |
3,571 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A certain solution has pH 3.89 at 0°C. FindpOHand [OH-].
A. pOH=12.11, [OH^-]= 7.8 × 10^-13
B. pOH... |
3,572 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
For the first order decomposition of azomethane at 600°K, it takes30 minutes for the original conce... |
3,573 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
When an inch of rain falls on New York, it results in a rainfall of 19.8 × 10^9 liters. If the temp... |
3,574 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the half-life of an unstable substance if 75% of any given amount of the substance decompos... |
3,575 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A metal has an atomic weight of 24. When it reacts with a non-metal of atomic weight 80, it does so... |
3,576 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
When a swimmer leaves cold water on a warm, breezy day, he experiences a cooling effect. Why?
A. T... |
3,577 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What is the explanation for the following trends inlattice energies ? NaF - 260 Kcal / moleNaCl- 18... |
3,578 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The vapor pressures of pure benzene and toluene at 60°C are 385 and 139Torr, respectively. Calculat... |
3,579 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The following are physical properties of methyl alcohol, CH_3OH: freezing point - 98°C; boiling poi... |
3,580 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
An ionic bond is established between positive ion A and negative ion B. How would one expect the st... |
3,581 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the pH of a 0.10 M solution of sodium acetate, NaOAc. The equilibrium constant for the di... |
3,582 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Find K_b andpK_bfor the acetate ion CH_3COO^-, The ionization constant of CH_3COOH is K_a = 1.75 × ... |
3,583 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Two balloons at the same temperature of equal volume and porosity are each filled to a pressure of ... |
3,584 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
At standard conditions, it is found that 28.0 g of carbon monoxide occupies 22.4 l. What is the den... |
3,585 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A laboratory technician has a solution of 0.1 M NaC_2H_3O_2. Find its pH and the percent hydrolysis... |
3,586 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What volume (in cc) is occupied by a block of woodof dimensions25.0 m × 10.0 cm × 300 mm. All edges... |
3,587 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Two moles of gaseous NH_3 are introduced into a 1.0-liter vessel and allowed to undergo partial dec... |
3,588 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
In water vapor at 25°C, what is the average speed of a water molecule in meters/sec? Recall that 1 ... |
3,589 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
In a study of the equilibrium, H_2 + I_2 = 2HI, a certain number of moles x of HI are formed when 1... |
3,590 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
At 100°C and 720 mm Hg or 720 torr, what is the density of carbon dioxide, CO_2 ?
A. 1.32 g/liter
... |
3,591 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the mean free path for oxygen at 25°C at (a) 1atm pressure and (b) 10^-3torr.
A. 7.02 × ... |
3,592 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The time required for a volume of gas, X, to effuse through a small hole was 112.2 sec. The time re... |
3,593 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Express the Boyle temperature of a vanderWaals gas in terms of the constants a, b, and R. The final... |
3,594 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A gas obeys the vanderWaals equation, with P_c = 30atm andT_c= 200°C. The compressibility factor PV... |
3,595 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate the weight in grams of sulfuric acid in 2.00 liters of 0.100 molarsolution. (MW of H_2SO_... |
3,596 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
John Dalton found water to be 12.5% hydrogen by weight. Calculate the atomic weight of oxygen if Da... |
3,597 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
What will be the final concentration of I^- in a solution made by mixing 35.0 ml of 0.100 M NaHSO_3... |
3,598 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A nonvolatile benzoic acid dissolves in ethanol to form an ideal solution. Assuming there is no ass... |
3,599 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Calculate \DeltaH when 2 moles of Cu are heated from 50°C to 200°C, given that a = 5.41 cal mol^-1 ... |
3,600 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Estimate the solubility of naphthalene in benzene at room temperature (25°C).
A. 8.50 moles of nap... |
3,601 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Suppose the change HC_2 O_4 ̄ + Cl_2 CO_3 ^2 ̄ +Cl ̄ is to be carried out in basic solution. Starti... |
3,602 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A 1-cm cube (1.46 g) of carbon tetrachloride is irradiated to produce ^35S by the reaction (^35 _17... |
3,603 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
When a current of 5.36 A is passed for 30 min. through an electro-lytic cell containing a solution ... |
3,604 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
In a chemical reaction requiring two atoms of phosphorus for five atoms of oxygen, how many grams o... |
3,605 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
It is given that masses of a proton and an electron are equal to 1.00728 and 0.000549 u, respective... |
3,606 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
2 moles of an ideal gas are expanded reversibly and isothermally at 0°C from 1 atm. Calculate the f... |
3,607 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Solder is a lead-tin alloy. 1.00 gram of the alloy treated with warm 30 % HNO_3 gave a lead nitrate... |
3,608 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Chlorine is found in nature in two isotopic forms, one of atomiemass 35amuand one of atomic mass 37... |
3,609 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A 2-liter Dumas bulb contains n moles of nitrogen at 0.5atm pressure and at T°K. On addition of 0.0... |
3,610 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Find the distance between a plane passing through the centers of one close-packed layer of spheres ... |
3,611 | G | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A sample of beryllium powder was placed in a box having an effusion hole of 3.18 mm in diameter. Af... |
3,612 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Two molecules ^14N_2 and ^14N^15N have the sameinternuclear distance given as 0.1095 nm. Evaluate t... |
3,613 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
How many alpha particles per second would be emitted from 4 × 10-^12 g of ^210Po (t_(1/2) = 138 day... |
3,614 | E | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Given thatK_spfor Mg(OH)_2 is 1.2 × 10-^11 , calculate the solubility of this compound in grams per... |
3,615 | F | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
You add radioactive material whose activity per unit mass was 45.5 s^-1 g^-1 to a liquid and then d... |
3,616 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Determine the value of (0.0081)^\rule{1em}{1pt}3/4.
A. (100) / (27)
B. (1000) / (81)
C. (1000) / (... |
3,617 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Using the following ionic radii, find the fractional void volume in (a)CsCl, (b)NaCl, (c)LiCl. Assu... |
3,618 | J | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A cooling system is designed to maintain a refrigerator at - 25°C in a room at ambient temperature ... |
3,619 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
For the cell Ag/AgCl/Cl^-(a = 0.0001), Ce^4+(a = 0.01), Ce^3+ (a = 0.1)/Pt solve for E, where the s... |
3,620 | C | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Find thehydroniumion concentration of .1M HOAC (acetic acid) solution. Assume k_a = 1.75 x 10^-5 fo... |
3,621 | A | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The wave function for the state of lowest energy of a one - dimensional harmonic oscillator is \psi... |
3,622 | D | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
NH_4HS(s) = NH_3(g) + H_2S(g) 0.06 mole of solid NH_4HS are introduced into a 2.4 liter flask at 20... |
3,623 | B | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
A sealed, rigid container contains three gases: 28.0 g of nitrogen, 40.0 g of argon, and 36.0 g of ... |
3,624 | I | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
The reaction of Br2(g) with Cl2(g) to form BrCl(g) has an equilibrium constant of 15.0 at a certain... |
3,625 | H | chemistry | Answer the following multiple choice question. The last line of your response should be of the following format: 'Answer: $LETTER' (without quotes) where LETTER is one of ABCDEFGHIJ. Think step by step before answering.
Which pair of reactants will have no net ionic equation (that is, all the ions cancel)?
A. Na2SO3 ... |
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