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67 solutions

The Reaction Quotient

Q. Consider the reaction A(aq) <-----> 2B(aq) where Kc=4.1 at 25C. If 0.50 M A(aq) and 1.5M B(aq) are initially present in a 1.0L flask at 25C, what change in concentration (if any) will occur in time? a. [A] will decrease ad [B] will decrease. b.[A] will decrease and [B] will increase. c. [A] will increase and [B} will decrease. d.[A] and [B] remain unchanged. e.[A] will increase and [B] will increase.

Solved • Dec 10, 2019

The Reaction Quotient

Q. The equilibrium constant for the reaction Ni^2+(aq) + 6 NH3(aq) ⇌ Ni(NH3)6^2+(aq) is Kf =5.6 x 10^8 at 25°C. (b) If standard-state concentrations of reactants and products are mixed, in which direction does the reaction proceed?

Solved • Nov 19, 2019

The Reaction Quotient

Q. The reaction A2 + B2 ⇌ 2 AB has an equilibrium constant of Kc = 4 For each of the parts below, where A is shaded and B is unshaded: i. Determine if the reaction is at equilibrium, by calculating Q. ii. If the reaction is not at equilibrium, predict which direction the reaction would proceed to reach equilibrium (i.e. towards the products of towards the reactants). iii. Explain why this would happen.

Solved • Nov 18, 2019

The Reaction Quotient

Q. The reaction A2 + B2 ⇌ 2 AB has an equilibrium constant of Kc = 4 For each of the parts below, where A is shaded and B is unshaded: i. Determine if the reaction is at equilibrium, by calculating Q. ii. If the reaction is not at equilibrium, predict which direction the reaction would proceed to reach equilibrium (i.e. towards the products of towards the reactants). iii. Explain why this would happen.

Solved • Nov 18, 2019

The Reaction Quotient

Q. The reaction A2 + B2 ⇌ 2 AB has an equilibrium constant of Kc = 4 For each of the parts below, where A is shaded and B is unshaded: i. Determine if the reaction is at equilibrium, by calculating Q. ii. If the reaction is not at equilibrium, predict which direction the reaction would proceed to reach equilibrium (i.e. towards the products of towards the reactants). iii. Explain why this would happen.

Solved • Nov 18, 2019

The Reaction Quotient

Q. The reaction 2CH4(g)⇌C2H2(g)+3H2(g) has an equilibrium constant of K = 0.154. If 6.50 mol of CH4, 4.60 mol of C2H2, and 10.70 mol of H2 are added to a reaction vessel with a volume of 5.50 L , what net reaction will occur?

Solved • Nov 15, 2019

The Reaction Quotient

Q. The following reaction was carried out in a 2.50 L reaction vessel at 1100 K: C(s)+H2O(g)⇌CO(g)+H2(g) If during the course of the reaction, the vessel is found to contain 8.75 mol of C, 15.5 mol of H2O, 3.60 mol of CO, and 6.00 mol of H2, what is the reaction quotient Q? Enter the reaction quotient numerically.

Solved • Nov 15, 2019