1) Use the following values to answer the questions below: K sp of AgOH = 1.50 x
ID: 909268 • Letter: 1
Question
1) Use the following values to answer the questions below:
Ksp of AgOH = 1.50 x 10-8
Ka of HC2H3O2 = 1.74 x 10-5
-What is the concentration of Ag+1 in a saturated solution of AgOH?
-How many grams of AgOH can be dissolved into one liter of a NaOH solution that has an initial pH of 12?
-Suppose that AgOH is reacted with acetic acid (HC2H3O2). Use the above equilibrium constants and your knowledge of acid-base chemistry to calculate the equilibrium constant for the following reaction:
AgOH (s) + HC2H3O2 (aq) ----------> Ag+1(aq) + C2H3O2-1(aq) + H2O
Explanation / Answer
1) Ksp of AgOH = 1.5*10^-8
Ka of HC2H3O2 = 1.74 x 10-5
In a saturated solution of AgOH
Ksp = s^2
= s = 1.22*10^-4 M
b) Ksp = [Ag+] [OH-]
= OH- = 0.01M
Moles of AgOH = 0.01*1L = 0.01
Mass = 231.735*0.01 = 2.31 grams
2) The equillibrium constant = squareroot (Ksp * Ka)
= 5.10*10^-7
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