Question

The number of h3o+ ions present in 10 ml of water at 25

Answer 1

The number of H3O+ ions present in 10 ml of water at 25 degrees centigrade.

This can be calculated as follows.

The concentration of H+ (the same as H3O+) ions in water at 25°C is given as;

[H+] = 10^-7 mol /L

Then 10 ml will have    10^-7 x 10/1000 = 1.0 x 10^-9 moles

1 mol H+ ions = 6.022*10^23 ions

then 1.0 x 10^-9 =

1.0 x 10^-9 x 6.02 x 10^23

= 6.02 x 10^14 ions.