What is the pH of a .500 M solution of HNO_3?

1 Answer
Jun 20, 2016

pH=0.30

Explanation:

HNO_3(aq) + H_2O(l) rightleftharpoonsH_3O^+ + NO_3^-

pH=-log_10[H_3O^+]. Since the equilibrium lies almost entirely to the right, we take [H_3O^+]=0.500*mol*L^-1.

log_10(0.500) = -0.301, and pH=??