Question

Nitric acid (HNO3) is a strong acid that is completely ionized in aqueous solutions of concentrations ranging from 1% to 10% (1.50 ). However, in more concentrated solutions, part of the nitric acid is present as un-ionized molecules of HNO3. For example, in a 50% solution (7.50 ) at 25°C, only 33% of the molecules of HNO3 dissociate into H+ and NO3. What is the value of Ka for HNO3?

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Equilibrium Concepts

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