What is the pH of 200.0 mL solution of 0.500 M HBr after the addition of the following solutions:
a. 0.0 mL of 0.1 M KOН
b. 50.0 mL of 0.1M KОН
C. 1000.0 mL of 0.1M KOH
d. 1200.0 mL of a0.1М КОН

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