1. Which of the following ions will react with water in a hydrolysis reaction: Na+, Ca2+,...

1. Which of the following ions will react with water in a hydrolysis reaction: Na+, Ca2+, Cu2+, Zn2+, F-, SO32-, Br-

2. For those ions in question 1 that undergo hydrolysis, write net ionic equations for the hydrolysis reaction(s).

3. The Ka for HCN is 4.9x10-10. What is the value of Kb for CN-? Write the 2 equilibrium expressions and chemical equations.

4. What are the conjugate base and conjugate acid of H2PO4-? Look up the different Ka values for phosphoric acid, a polyprotic acid. Explain the trend in the Ka values based on the chemical structures of the species involved in each proton dissociation.

5. From what acid and what base were the following salts made? Write the reaction that would produce the salts below.

CaSO4 ____________________________________________________________

NH4Br ____________________________________________________________

BaCl2 ____________________________________________________________

8. Define the term salt.

7. Tell whether 0.1 M solutions of the following salts would be acidic, neutral, or basic:

BaCl2 ___________________________________________________________

CuSO4 __________________________________________________________

(NH4)2SO4 _______________________________________________________

ZnCl2 ___________________________________________________________

NaCN ___________________________________________________________

8. What is the pH of a solution that is 0.10 M HC2H3O2 and 0.20 M NaC2H3O2? Ka for acetic acid is 1.8x10-5.

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Expert Solution

queen_honey_blossom answered 1 year ago

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