Answer: 8.2
Explanation:
pH of a solution is - Log [ H+].
pH = - Log [ 6.2 x 10-9 M]
= 9 - 0.7924
pH = 8.24 approx 8.2
If you change the subscripts it would change the reactants or products and then you would be solving a different formula, you would change what the chemical is
