What is the pH of a 0.00750 M H2SO4 solution?

Asked on by bec-bec

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jerichorayel | College Teacher | (Level 2) Senior Educator

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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



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