Calculate the concentrations of the H+ (or H3O+) ion in a 0.5 M HF solution
a. H+ concentration = 7.7 x 10^-1 M
b. H+ concentration = 9.2 x 10^-5 M
c. H+ concentration = 5.3 x 10^-3 M
d. H+ concentration = 2.7 x 10^-2 M
e. H+ concentration = 1.9 x 10^-2 M