Question

A bottle of soda has a PH of 3.

After the beverage bottle is left open for several hours, the hydronuim ion concentration in the beverage solution decreases to 1/1000 of the original concentration. What is the new ph of the solution?​

Answer 1

The new pH of the solution
`= 6`

Step-by-step explanation:

Given

pH of bottle of Soda is
`3`

As we know that

pH
`= -`log [H+]

We will derive the hydrogen ion concentration when pH is
`3`

`3 = -` log [H+]

Taking anti-log on both the sides, we get -

H+ ion is equal to
`10^(-3)`

When the hydronuim ion concentration reduces by
`(1)/(1000)` of the original concentration, the new hydrogen ion concentration becomes

`(1)/(1000000) = 10^(-6)`

The new pH is

`= - log [ 10^(-6)]\\= 6`