Question

A 0.14 M HNO2 solution is 5.7% ionized. Calculate the H3O+ ion concentration.

Answer 1

the H3O+ ion concentration is 0.0079M .

Given, Molarity of Solution of HNO, = 0.14 M percentage of Yonization of HNO, = 5.7% Il concentration of Hzot ion = ? I consider the solution is litre The ionization equation of HNO is HNO, + HO - H30* + No -00 | percentage of ionization = 5.71__ 5.71 innyzation means for every_100 | moles of HNO,, 5.7 moles are idnized. Molarity = 0.14 M 10.14M HNO, solution means in th solution there 0.14 moles of HNO₂. Out off 0.14 moles of HNO 5:7). are ionized lie Moles of ionized HNO, = 0.14 x 5.4 = 0.0079 moes from the ionization reaction (see equation La mole of HNO, produces mole of H₂ot jon Il so 0.0079 mole of HNO, produces 0.0079 moles of H₂otion. " solution is 1 L 1. Concentration of H₂ot is 0.0079 M the