Question

What is the concentration of H+ in a 0.121 M HCl solution?

Answer 1

The concentration of `"H"^+` will be `"0.121 M"`.

Explanation:

As `"HCl"` is a strong acid and hence a strong electrolyte, it will dissociate as

`"HCl" rarr "H"^+ + "Cl"^-`

So, the concentration of `"H"^+` will be `"0.121 M"` (the same as `"HCl"`).