Answer:
pOH = 6.73
Explanation:
First, calculate pH = -log[H+] = -log(5.4 x 10^-8) = 7.27
pOH + pH = 14, so pOH = 14 - 7.27 = 6.73
you didnt include the picture
Answer: the correct one would be option B.
If the ratio of mass to volume is higher, then density is higher. If the ratio of mass to volume is lower, the density is lower.