If the POH of a Borax Solution Is 4

Multiple Choice

If the pOH of a borax solution is 4.55, what is the H₃O⁺ concentration in the borax solution?

A) 4.6 M
B) 3.5 × 10^-9 M
C) 3.5 × 10^-10 M
D) 3.5 × 10^-11 M
E) 9.4 M