Question

The pH of a solution decreases by 2.0 How does the hydronium ion concentration of the solution change?

Answer 1

“increase to 100 times the original concentration”

Answer 2

it will increase 100 times.

Step-by-step explanation:

pH is calculated by taking negative log of hydronium ion concentration.

pH = -log[H⁺]

So let initial pH of solution is 4 then the [H⁺] = 10⁻⁴

if the pH decreased by 2 it means that the [H⁺] = 10⁻²

Thus the new [H⁺] is 100 times more than the initial [H⁺] .

The pH decreases with increase in concentraiton of pH is calculated by taking negative log of hydronium ion concentration.

pH = -log[H⁺]

So let initial pH of solution is 4 then the [H⁺] = 10⁻⁴

if the pH decreased by 2 it means that the [H⁺] = 10⁻²

Thus the new [H⁺] is 100 times more than the initial [H⁺] .