What is the pH of a buffer solution that is prepared by dissolving 25.5 g of sodium acetate in a sufficient volume of 0.550 M acetic acid to obtain 500 mL of buffer, knowing that its Ka is 1.80x10^-5?
Added by Vanesa H.
Step 1
First, we need to find the moles of sodium acetate (NaC2H3O2) and acetic acid (HC2H3O2) in the solution. Moles of sodium acetate = mass / molar mass Moles of sodium acetate = 25.5 g / (22.99 g/mol + 12.01 g/mol + 4*1.01 g/mol + 2*16.00 g/mol) Moles of sodium Show more…
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