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.

Question

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.

DrBob222 · Accepted Answer

Use the Henderson-Hasselbalch equation. the salt is the base.

Anonymous · Answer

Does 4.7 sound correct?

DrBob222 · Answer

Close but I wouldn't round it off to 4.7.