Chemistry Homework Help

### Browse Homework Solutions

144 solutions

The Reaction Quotient

#### Q. Can you explain this problem and the answers why is A ) no and and b) to the left Thank you!

Solved • Jul 21, 2019

The Reaction Quotient

#### Q. For the following reaction ΔHo = 2816 kJ CO2(g) + 6H2O(l)↔ 6 O2(g) + C6H12O6(s) (1) If some CO2(g)is added to the equilibrium mixture at constant temperature and volume

Solved • Jul 20, 2019

The Reaction Quotient

#### Q. The equilibrium constant K for this reaction at 472 celsius is 0.105: N2 (g) reacts with H2 (g) producing NH3 (g) we prepare the following mixture in one container at 472 celsius: 2.00 M H2, 1.00 M N2, and 2.00M NH3 a) is this mixture at equilibrium? how do we know if it is or not b) if not how will this mixture react to reach equilibrium ? will it shift to the right, left or no change? how do we know if it shifts to the right left or there's no change

Solved • Jul 20, 2019

The Reaction Quotient

#### Q. Consider the following equilibrium at 100°C. COBr2(g) - CO(g) + Br2(g) Kc = 4.74 104 (a) A system has the following concentrations at 100°C. [COBr2] = 1.69.10-6 M [CO] = 2.81 x 10-3 M [Br2] = 2.51.10-5 M Is the system at equilibrium? If not, in which direction will the reaction proceed to reach equilibrium? Ye s , the system is at equilibrium. No, the system is not at equilibrium and will shift toward the reactants. No, the system is not at equilibrium and will shift toward the products. (b) If a system has a reaction quotient of 2_1/,:1 Y----11 at 100°C, what will happen to the concentrations of COBr2, CO, and Br2 as the reaction proceeds to equilibrium? [COBr2]: decrease increase not change [CO]: decrease increase not change [Br2]: decrease increase not change

Solved • Jul 5, 2019

The Reaction Quotient

#### Q. For the reaction N2(g)+ 3 H2(g) - 2 NH3(g) at 25.0°C, the Kc of the reaction is 5.4.105. Use the given concentrations to determine the following. [N2]=0.0021 M [H2]=0.0048 M [NH3]=1.0e-09 M (a) Determine Q at this time. (Omit units.) (b) Determine which direction the reaction will proceed in order to reach equilibrium. left right

Solved • Jul 5, 2019

The Reaction Quotient

#### Q. A chemical engineer is studying the following reaction: N2(g)+ 3 H 2(g) —> 2 NH3(g) At the temperature the engineer picks, the equilibrium constant Kp for this reaction is 0.00020. The engineer charges ("fills") three reaction vessels with nitrogen and hydrogen, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions.

Solved • Jul 5, 2019

The Reaction Quotient

#### Q. Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation: C6H12 ⇌ CH3C5H9 If Kc = 0.143 at 25°C for this reaction, find the equilibrium concentrations of C6H12 and CH3C5H9 if the initial concentrations are 0.200 M and 0.150 M, respectively. A) [C6H12] = 0.307 M, [CH3C5H9] = 0.043 M B) [C6H12] = 0.093 M, [CH3C5H9] = 0.257 M C) [C6H12] = 0.107 M, [CH3C5H9] = 0.107 M D) [C6H12] = 0.218 M, [CH3C5H9] = 0.013 M

Solved • Jul 2, 2019