4) Consider a solution of 1.4 m of HN3 (molar mass=63.0 g/mol) its density=1.15 g/ml. Calculate the molarity (M) of a new solution prepared by mixing 40 ml of 1.4m HNO, solution with 20ml pure water A) 1.61 B) 1.48 C) 0.99 D) 0.74

4) Consider a solution of 1.4 m of HN3 (molar mass=63.0 g/mol) its density=1.15 g/ml. Calculate the molarity (M) of a new solution prepared by mixing 40 ml of 1.4m HNO, solution with 20ml pure water A) 1.61 B) 1.48 C) 0.99 D) 0.74

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter15: Complex Ion And Precipitation Equilibria

Section: Chapter Questions

Problem 70QAP

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Question

4) Consider a solution of 1.4 m of HN3 (molar mass=63.0 g/mol) its
density=1.15 g/ml. Calculate the molarity (M) of a new solution prepared by mixing 40 ml of
1.4m HNO, solution with 20ml pure water
A) 1.61
B) 1.48
C) 0.99
D) 0.74

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[4]
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Two beakers are placed in a small closed container at 25 oC. One contains 231 ml of a 0.267 M aqueous solution of FeClg; the second contains 416 ml of a 0.140 M aqueous solution of FeCla. Small amounts of water evaporate from both solutions. As time If we wait and that in the first gradually passes, the volume of solution in the second beaker gradually long enough, what will the final volumes and concentrations be increases decreases First beaker Second beaker Initial 231 ml 0.267 M 416 ml 0.140 M Final mL M ml M
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