Question

Predict the [H3O+(aq)] for 0.20 mol/L hydrobromic acid.

a) 0.10 M
b) 0.20 M
c) 0.30 M
d) 0.40 M

Answer 1

The concentration of hydronium ion in a 0.20 M hydrobromic acid solution is 0.20 M.

Step-by-step explanation:

The concentration of hydronium ion in a 0.20 M hydrobromic acid solution can be predicted. Hydrobromic acid (HBr) is a strong acid that completely dissociates in water, so the concentration of H3O+ ions will be equal to the concentration of the hydrobromic acid. Therefore, the correct answer is b) 0.20 M.