A) A solution of Ba(OH)2 has a molarity of 0.00617mol/L. Calculate the final pH of the solution.
B) Consider the reaction: CaBr2(s) → Ca(s) +Br2(l)
Which of the following statements is correct? Select all thatapply.
Bromide Ion is reducing agent
NOT a spontaneous reaction
Ca is oxidized
Br is Oxidized
Br is Reduced
Ca is Reduced
Calcium Ion is the Reducing Agent
IS a spontaneous reaction
Br ion is the oxidizing agent.
Ca ion is the oxidizing agent.
C) What would cause the equilibrium to shift left CH3COOH(aq) +H2O(l) ⇌ CH3COO–(aq) + H3O+(aq).
Add HCL
pH increasing
Add acetic acid
Acetate Ion addition
D) 3 A2 (g) + 2 Z3 (g) ↔ 3Z2A2 (g)
The equilibrium concentrations are: A2 = 0.061 mol/L ;Z3 = 0.769 mol/L ; Z2A2 = 0.245mol/L.
Calculate the value of the equilibrium constant at345oC.
E)
Which of the following equations representsH2BO3− acid
| | H2BO3− (aq) +H3O+(aq) ⇌ H3BO3 (aq) +H2O(l) |
| | H2BO3− (aq) +HCO3−(aq) ⇌ HBO32−(aq)+ H2CO3(aq) |
| | H2BO3− (aq) + H2S(aq) ⇌ H3BO3(aq) + HS−(aq) |
| | H2BO3− (aq) + H2O(l)⇌ H3BO3(aq) + OH−(aq) |
| | H2BO3− (aq) +NH4+(aq) ⇌ H3BO3 (aq) +NH3(aq) |
