Answer to Question #133701 in General Chemistry for hi

General Chemistry

Question #133701

what is The pH of buffer prepared by adding 10ml of 0.10M acetic acid to 20ml of
e. 0.10MCH3COONa. (Ka=1.75x10-5) ?

Expert's answer

"pH=pK_a+\\log\\frac{[salt]}{[acid]}\\\\pH=4.756+\\log\\frac{20\\times0.1}{10\\times0.1}=4.756+\\log2=5.056"

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