1. Solution of a base has pH of 10.5. Calculate the concentration of the base if it is: a. NaOH b. Fe(OH)3
2. How to determine what the pH of the solution will be for the following salts? ie (neutral acidic basic) A. NaNO3 B. NH4Cl C. CH3COOk
3. Lewis Theory: which of the following compounds or ions below is a lewis theory and how can you tell? A. NH3 B. Co+3 in Co(NH3)6^+3 C. :C==O: in Ni(CO)4
4. Calculat the pH of 0.15 M solution of Na2HPO4 if Ka(H2PO4-)=6.3*10^-8
5. If the ratio of base to acid in a buffer decreases by a facor of 100, how does the pH of the buffer change? Show work
6. The solution contained 3.20*10^-5 M of AgNO3. When KCl was added to the solution, up to 5.38*10^-6 M, the precipitation of AgCl was observed. What is the Ksp of AgCl according to these data? Show work.
1. Solution of a base has pH of 10.5. Calculate the concentration of the base if it is: a. NaOH b. Fe(OH)3
2. How to determine what the pH of the solution will be for the following salts? ie (neutral acidic basic) A. NaNO3 B. NH4Cl C. CH3COOk
3. Lewis Theory: which of the following compounds or ions below is a lewis theory and how can you tell? A. NH3 B. Co+3 in Co(NH3)6^+3 C. :C==O: in Ni(CO)4
4. Calculat the pH of 0.15 M solution of Na2HPO4 if Ka(H2PO4-)=6.3*10^-8
5. If the ratio of base to acid in a buffer decreases by a facor of 100, how does the pH of the buffer change? Show work
6. The solution contained 3.20*10^-5 M of AgNO3. When KCl was added to the solution, up to 5.38*10^-6 M, the precipitation of AgCl was observed. What is the Ksp of AgCl according to these data? Show work.
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