14. Calculating the pH of the solution resulting when 5.00mL of 0.150M NaOH(aq) is added to 25.00mL of 0.100M HCOOH(aq). Use Ka = 1.8×10-4 for HCOOH.
(A)3.75
(B)3.38
(C)4.20
(D)7.5
(E)5.30

答案：登入後查看
統計： A(0), B(11), C(1), D(0), E(2) #2275860