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+--- Thread: CHEMISTry!!!? (/thread-5498.html)
CHEMISTry!!!? - Erkenbrand - 01-25-2011
what is the [H3O+] in a solution made by adding 0.020 moles of nitric acid to 500.0ml of water?
Re: CHEMISTry!!!? - Zaraph - 01-25-2011
Nitric acid is a strong acid, so it completely dissociates in water. The molarity of the acid is the molarity of the H3O+ ion.
Molarity = moles/liters = (0.02 mol)/(0.5 L) = 0.04 M
Your answer is 0.04 M.
Incidentally, if you wanted the pH, you could take the negative log of 0.04 and you would have a pH of 1.40