The chemical equation for the dissociation of HNO2 in water is: HNO2 (aq) ⇌ H+ (aq) + NO2- (aq). What are the equilibrium concentrations of HNO2 (aq) and NO2- (aq) and the pH of a 0.70 M HNO2 solution?
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$K_a = \frac{[H^+][NO_2^-]}{[HNO_2]}$ Show more…
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