Acids, bases and buffers

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Question 38

Medium

A buffer solution is prepared by mixing 400 cm³ of 0.60 mol dm^-3 propanoic acid, $CH3CH2COOH\text{CH}_3\text{CH}_2\text{COOH}$ , with 600 cm³ of 0.50 mol dm^-3 sodium propanoate, $CH3CH2COONa\text{CH}_3\text{CH}_2\text{COONa}$ . Given that $K_a\,$ for propanoic acid is 1.35 × 10^-5 mol dm^-3 at this temperature, what is the pH of the resulting buffer solution?

$4.77$

$4.79$

$4.87$

$4.97$

Acids, bases and buffers

Question 38

Acids, bases and buffers Questions

Acids, bases and buffers

Question 38

Acids, bases and buffers Questions