Which of the following solutions at 25 °C is basic?

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Which of the following solutions at 25 °C is basic? (a)

pOH = 8.00

(b)

[\text{OH}^-] = 8.0\times10^{-8}\;\text{M}

(c)

pOH = 6.85

(d)

[\text{H}_3\text{O}^+] = 1.1\times10^{-7}\;\text{M}