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242 solutions

Le Chatelier's Principle

Q. Consider the following aqueous equilibrium for a formic acid solution. Suppose solid sodium formate, NaHCOO, is added to the solution. Ignoring any changes in volume, which of the following statements regarding the resulting solution is not correct? A.The H+concentration decreases. B.The system shifts left to reestablish equilibrium. C.The HCOOH concentration increases. D.The value of Ka does not change.E.The pH decreases.

Solved • Apr 2, 2020

Le Chatelier's Principle

Q. Hydrogen sulfide (H2S) is a contaminant commonly found in natural gas. It is removed by reaction with oxygen to produce elemental sulfur. 2 H2S (g) + O2 (g) ⇌ 2 S (s) + 2 H2O (g). For each of the following scenarios, determine whether the equilibrium will shift to the right, shift to the left, or neither. Explain your answers. No credit will be given for just left or right! a. addition of H2S (g), b. removal of O2 (g), c. removal of H2O (g), addition of S(s) and addition of Ne(g).

Solved • Apr 2, 2020

Le Chatelier's Principle

Q. Here is the chemical reaction that represents solid silver bromide dissolving in water: AgBr(s) ⇌ Ag^+(aq) + Br^-(aq) Ksp = 5.3 x 10^-13 Which of the following actions would shift this reaction toward solid silver bromide? a) Add more silver bromide. b) Remove bromide ions. c) Remove bromide ions. d) Remove silver ions.

Solved • Mar 24, 2020

Le Chatelier's Principle

Q. Using le Chatelier's principle determine how the process is affected after each of the following temperature or pressure changes. Consider that a more effective reaction produces more product or more product in a shorter amount of time.

Solved • Mar 3, 2020

Le Chatelier's Principle

Q. The following reaction is exothermic. Which change will shift the equilibrium to the left? a.increasing the temperature. d.decreasing the volume. b.decreasing the temperature. e.increasing [SO2]. c.increasing the pressure

Solved • Mar 23, 2020

Le Chatelier's Principle

Q. What will happen in the following reaction if FeS2is added to the reaction? a.The equilibrium constant will increase. b.The equilibrium will change in the direction of the reactants. c.The equilibrium will change in the direction of the products. d.No change in equilibrium is observed. e.The equilibrium constant will decrease.

Solved • Mar 23, 2020

Le Chatelier's Principle

Q. For the reaction 2A (g) + B (g) → 3 C (g) + D (g) where ΔH = + 31.5 kJ/mole explain four way to increase the yield of the compound D

Solved • Mar 22, 2020