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pH Calculations of Strong Acids


Advanced Chemistry Topics

Strong Acids- Due to the complete dissociation of strong acids in aqueous solution, the concentration of hydronium ions in the water is equal to the concentration of the acid in the solution: 

[HA] = [H+] = [A]; pH = −log[H+]


Calculate the pH of a 0.100 M solution of HCl.

Therefore,  the [H+] equals 0.100 M. So, to solve it, you write:

pH = - log (0.100) = 1.000

Calculate the pH of a 1.00 M solution of HBr.

pH = - log (1.00) = 0.00 <--Answer

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