Answer:
1.26*10^-8M
Explanation:
If pH = 6.10
Then pOH = 14.00 - 6.10
pOH = 7.90
[OH-] 10^-pOH
[OH-] = 10^-7.90
[OH-] = 1.26*10^-8M
Answer: 1.26 x 10^-8