pH & pOH Calculation WS
pH Calculation:
Kw = [H+][ OH-] = 1.00 x 10-14
pH = -Log[H+]
OR [H+] = 10-pH
pOH = -Log[OH-] OR [OH-] = 10-pOH
pH + pOH = pKw = 14.000
Titration:
MaVana = MbVbnb
Direction: Show all work for each problem.
1. a) Calculate the concentration and 50.0 mL of HCl if 18.3 mL of standardized 0.00100 M NaOH is
used in a neutralization titration. b) Calculate the pH and pOH of the unknown HCl from part (a).
2. a) What volume of 0.0045 M NaOH is needed to neutralize 50.0 mL of 0.000750 M HCl in a
neutralization reaction? b) Calculate the pH and pOH of 0.0045 M NaOH from part (a).
3. Solve and write the final answer in the chart below: SHOW WORK for each box on the right
side!!!
Question
[H+]
pH
pOH
[OH–]
a
1.0 x10-4
b
3.9
c
1.2
d
8.3 x10-8