Consider the dissolution of calcium hydroxide: Ca(OH)2(s) --> Ca2+(aq) + 2OH(aq)
ID: 1070737 • Letter: C
Question
Consider the dissolution of calcium hydroxide:
Ca(OH)2(s) --> Ca2+(aq) + 2OH(aq)
K = 4.7 x 106
Write the equilibrium expression for this reaction.
2. Identify whether the following actions would favor the formation of products, reactants, or have no affect upon the dissolution of calcium hydroxide. Explain each answer.
a. Addition of CaCO3 to an equilibrium mixture of calcium hydroxide and water.
b. Addition of Na2CO3 to an equilibrium mixture of calcium hydroxide and water.
c. Addition of HCl to an equilibrium mixture of calcium hydroxide and water.
d. Addition of NaOH to an equilibrium mixture of calcium hydroxide and water
Explanation / Answer
Ca(OH)2(s) --> Ca2+(aq) + 2OH(aq)
K = 4.7 x 106
Write the equilibrium expression for this reaction.
2. Identify whether the following actions would favor the formation of products, reactants, or have no affect upon the dissolution of calcium hydroxide. Explain each answer.
a. Addition of CaCO3 to an equilibrium mixture of calcium hydroxide and water = towards left
b. Addition of Na2CO3 to an equilibrium mixture of calcium hydroxide and water = No change
c. Addition of HCl to an equilibrium mixture of calcium hydroxide and water = towards right
d. Addition of NaOH to an equilibrium mixture of calcium hydroxide and water = towards left