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A buffer solution is prepared by mixing 20.0 mL 0.45M HAc (acetic acid) with 35.0 mL...

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Chemistry

A buffer solution is prepared by mixing 20.0 mL 0.45M HAc(acetic acid) with 35.0 mL 0.45M NaAc (sodium acetate)

(a) What is the amount of 4.0M HAc which must be added to thisbuffer solution to double [H3O+]?

(b) What is the amount of 2.0M HCl that must be added todecrease the pH by 0.50?

(c) How much NaOH(s) in g has to be added to the solution toraise the pH by 2.00?

Answer & Explanation Solved by verified expert
3.7 Ratings (680 Votes)
a pH pKa logAHA mmol of A 35045 1575 mmol of A mmol of HA 20045 9 mmol of HA pH 475 log15759 49930 H3O 10pH 1049930 1016248105 to double 2H3O 21016248105    See Answer
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