Question

A buffer solution is prepared by mixing 3 g of acetic

acid and 1.30 g of sodium acetate (CH3COONa. 3H2O)

and making the total volume to one litre. Calculate the

pH of the buffer (Ka = 1.8 × 10–5; H = 1; C = 12; O =

16; Na = 23)​

Answer 1

Answer:

First, calculate the pKa value.

pKa=−logKa=−log1.8×10−5=4.75

Now calculate the pH of the solution:

pH=pKa+logacetic acidsodium acetate=4.75+log(0.138330.1951)

       =4.75+0.1440=4.8940≈5

Explanation:

your answer make me Brainliests