Question

when the ph of an aqueous solution is changed from 1 to 2 the concentration of hydronium ions in the solution is

Answer 1

it's decreased, as less of the ions dissociate in the solution

Answer 2

Answer:When the pH of the solution is changed from 1 to 2 the concentration of the
`H_3O^+` in solution gets low.

Step-by-step explanation:

The pH of the solution is defined as negative logarithm of
`H_3O^+` ions concentration in a solution.

`pH=-\log[H_3O^+]`

1.
`H_3O^+` ions concentration when pH is 1

`1=-\log[H_3O^+]`

`[H_3O^+]=0.1 M`

2.
`H_3O^+` ions concentration when pH is 2

`2=-\log[H_3O^+]`

`[H_3O^+]=0.01 M`

When the pH of the solution is changed from 1 to 2 the concentration of the
`H_3O^+` in solution gets low.