What is the [H +] of vinegar if the pH is 2.1

Answer 1

[H +] = 10^(-pH)

[H +] = 10^(-2.1)

[H +] = 7.94 x 10^(-3) M

The [H +] of vinegar with a pH of 2.1 is 7.94 x 10^(-3) M.