What is the pH of a 0.00750 M H2SO4 solution?
The equation for the dissolution of H2SO4 in the solution can be written as:
`H_2SO_4 -> 2 H^(+) + SO_(4)^(-2)`
H2SO4 is a strong acid therefore it dissociates completely in the solution. Also, we can see that there are two molecules of H+ formed and therefore the concentration of H+ is twice the concentration of the acid itself.
To get the pH,
`pH = - log [H^(+)]`
`pH = - log (0.00750 * 2)`
`pH = - log (0.0150)`
pH = 1.8239087 = 1.824 -> answer