Question

Bantuin nomer 13,14,15,16 dong:")

Answer 1

13.
[OH-] = √Kb.M
[OH-] =√2.10^-5 x 0,1
[OH-] = 1,44.10^-3
pOH=3-log1,44
pH=11+log 1,44

14.
pH=2
[H+]=10^-2
M1xV1=M2xV2
10^-2 x 1 = 100x M2
M2=10^-4
[H+]=10^-4
pH=4

15.
pH=1
[H+]=10^-1
M1xV1=M2xV2
10^-1 x 1 = 10x M2
M2=10^-2
[H+]=10^-2
pH=2

16.
[H+]=√Ka.M
[H+]=√10^-5 . 0,1
[H+]=10^-3
pH=3