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A volume of 500.0 mL of 0.100 M NaOH is added to 535 mL of 0.200...

A volume of 500.0 mL of 0.100 M NaOH is added to 535 mL of 0.200 M weak acid (?a=4.69×10^−5). What is the pH of the resulting buffer?

HA(aq)+OH−(aq)⟶H2O(l)+A−(aq)

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