Question

A student measured the pH of four solutions. Which pH indicates the highest hydronium ion concentration? 3.2 7.0 9.1 12.4

Answer 1

The Ph 7.0 indicates the highest hydronium ion concentration

Answer 2

Answer: 3.2

Step-by-step explanation:

pH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

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

`pH=log\frac {1}{H_3O^+}`

Thus as pH and
`H^+` are inversely related, a solution having lower pH will have more amount of
`H^+` concentration. And a solution having more pH will have less amount of
`H^+` concentration.

Thus the solution with lowest pH of 3.2 will have highest hydronium ion concentration.