Question

Can someone help me in solving the first question please. And second question I just included...

Can someone help me in solving the first question please. And second question I just included just to see if my answer is correct. My dyslexia plays with my mind sometimes =/

The pKb of ammonia is 4.74. What is the pKa?

A

9.26

B

4.74

C

0.676

D

14

E

0.211

If I dissolve KOH in solution to a concentration of 3.4 x 10-4, what is [OH-] in solution?"

A.

3.4 x 10-4

B

2.94 x 10-11

C

Can t be determined without the pKa

D

2.94 x 10-10

E

3.47

0 0
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