Calculate the pH of an aqueous solution that is 0.210 mol L-1 in nitrous acid ( ) and 0.290 mol L-1 in potassium nitrite (
) .The acid dissociation constant of nitrous acid is 4.50 ×
.
A) 3.487
B) 3.210
C) 13.86
D) 10.51
E) 4.562
Correct Answer:
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