Enter your answer in scientific notation. Be sure to answer all parts. Calculate [H3O+] for a solution of nitric acid that is: pH = 5.46

Question

Enter your answer in scientific notation. Be sure to answer all parts.

Calculate

[

H3O+

]

for a solution of nitric acid that is:

pH = 5.46

Answer 1

Nitric acid = HNO₃ and it is a strong acid so ionizes completely.

HNO₃ + H2O => H₃O⁺ + NO₃^-

From pH, we can find [H₃O⁺] as 1x10^-5.46 = 3.47x10^-6 M = [H₃O⁺]