Question

Which option correctly shows the concentration of H3O+ ions in pure water (pH 7) ?(1 point)
Responses

14 mol/L
14 mol/L

7 mol/L
7 mol/L

1.0 x 10–14 mol/L
1.0 x 10 superscript minus 14 mol/L

1.0 × 10–7 mol/L

Answer 1

The correct option that shows the concentration of H₃O⁺ ions in pure water with a pH of 7 is:

**1.0 × 10⁻⁷ mol/L**

This is because, at pH 7, the concentration of H₃O⁺ ions in pure water is 1.0 × 10⁻⁷ moles per liter.