Question

Determine whether the following hydroxide ion concentrations ([OH−]) correspond to acidic, basic, or neutral solutions by estimating their corresponding hydronium ion concentrations ([H3O+] using the ion product constant of water (Kw).

It may help to keep the following equation in mind as you work Kw = [H3O+][OH−] = [1×10−7 M][1×10−7 M] = 1×10−14 M.

1. [OH-] = 4 x 10^-12 M

2. [OH-] = 7 x 10^-9 M

3. [OH-] = 7 x 10^-4 M

4. [OH-] = 2 x 10^10 M

5. [OH-] = 6 x 10^-5 M

6. [OH-] = 7 x 10^-13 M

7. [OH]- = 1 x 10^-7 M

8. [OH-] = 4 x 10^-2 M

Answer 1