how much grams of NaNo2 we needed to add into the 100 ml HNO2 solution has a concentration = 0.1 mol/liter, To give a solution that has a pH of 4 . note that Ka of HNO2=4*(10^-4) and the Molar mass of NaNO2 = 69 g/mol

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter14: Acids And Bases
Section: Chapter Questions
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how much grams of NaNo2 we needed to add into the 100 ml HNO2 solution has a concentration = 0.1 mol/liter, To give a solution that has a pH of 4 . note that Ka of HNO2=4*(10^-4) and the Molar mass of NaNO2 = 69 g/mol

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