What is concentration of hydrogen ions in 0.05mol/dm³ of hydrochloric acid?



Answer:
pH= -log[H]+

= - log 0.05 =1.30
In this part of the world, the cubic decimeter is better known as the LITER. Since HCl is a strong acid, 0.05M HCl will have an [H+] of 0.05 M.

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