Question

How would you classify a solution if [OH-] = 4.2 x 10-8 M?

A. Acidic
B. Basic
C. Neutral
D. It is impossible to tell based on the information given

would it be B? please explain

Answer 1

Let's think about this. If a neutral solution is 1E-7 M for (H^+) and 1E-7 M for (OH^-), that means for the solution to be basic the (OH^-) must be larger than 1E-7 M. Is 4.2E-8 M larger than 1E-7 M?

Answer 2

Just as an add on, you really need to learn to spell chemistry correctly.

Answer 3

The answer is A