Ph, Acids and Bases Quick Check

Question

4 of 54 of 5 Items

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

1.0 x 10-14 mol/L
1.0 x 10 -14 mol/L

7 mol/L
7 mol/L

1.0 × 10-7 mol/L
1.0 × 10 -7 mol/L

14 mol/L

Answer 1

The concentration of H3O+ ions in pure water at 25°C is correctly represented by:

1.0 × 10^-7 mol/L

This is because pure water is neutral and has equal concentrations of H3O+ and OH- ions, both being 1.0 x 10^-7 mol/L.