A solution that is prepared by mixing 20.0 mL of 0.32 M HC2H3O2 with 20.0 mL of 0.36 M NaC2H3O2 would have a pH of ___. For HC2H3O2, Ka = 1.8 x 10-5.

3 answers

Use the Henderson-Hasselbalch equation.
the salt is the base.
Does 4.7 sound correct?
Close but I wouldn't round it off to 4.7.