In: Chemistry
Acetic acid (molecular weight = 60.05 g/mol) and sodium acetate
(molecular weight = 82.03 g/mol) can form a buffer with an acidic
pH. In a 500.0 mL volumetric flask, the following components were
added together and mixed well, and then diluted to the 500.0 mL
mark: 100.0 mL of 0.300 M acetic acid, 1.00 g of sodium acetate,
and 0.16 g of solid NaOH (molecular weight = 40.00 g/mol).
What is the final pH? The Ka value for acetic acid is 1.8 x
10^-5
(Hint: what isthe key concept related to the coefficients in balanced chemical reactions?)
I have given the answer in three significant figures....if the answer does not match due to significant figures then please comment below.....