A solution that is 0.20 M in NH3 is also 0.30 M in NH4Cl. What is the [OH-] in this solution?
a. 4.5 × 10^-6 M
b. 1.2 × 10^-5 M
c. 7.4 × 10^-5 M
d. 6.4 × 10^-4 M
e. 2.4 × 10^-7 M
Answer: B
Chemistry
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