Question

A 1.0 x10 - 4 M solution has a pH of 10.00. The solute is a _____.Select one:a. weak acidb. weak basec. strong acidd. strong basei put d but answer was wrong can you explain how to figure this out

Answer 1

1) List the known and unknown quantities.

Sample: unknown.

Concentration: 1.0*10^(-4).

pH: 10.00.

Characteristic: unknown.

2) pH scale.

Weak acid: 4 - 6

Weak base: 8 - 10

Strong acid: 1 - 3

Strong base: 11 - 14

According to the more specific pH scale above, 10.00 corresponds to a weak base.

Option B.