Question #290720

Calculation the pH of the following systematically. Make sure to include the pertinent reactions and equations.

a. 2.5 x 10 -7 M HNO3

b. 2.0M CH3NH2 (Kb = 5.0 x 10 -4)

c. 0.45M HNO2 (Ka = 4.0 x 10 -4)


Expert's answer

a=pH=2.7


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