1. Consider the following reaction: Mg(s) + 2HCI(aq) → MgCl2(aq) + H;(g) A piece of magnesium was dropped into 0.1 M HCl and the following data was obtained: Mass of magnesium (g) Time (s) Mass of magnesium consumed (g) 0.30 4 0.15 8 0.10 12 0.063 16 0.043 20 0.027 (a) Calculate the average rate of mass of Mg consumed per second for the first twenty second. (b) Calculate the average rate of reaction in moles of Mg consumed per second for the first eight second. (Relative atomic mass of Mg = 24.3) (c) What would happen to the concentration of H* as the reaction proceeds?

1. Consider the following reaction: Mg(s) + 2HCI(aq) → MgCl2(aq) + H;(g) A piece of magnesium was dropped into 0.1 M HCl and the following data was obtained: Mass of magnesium (g) Time (s) Mass of magnesium consumed (g) 0.30 4 0.15 8 0.10 12 0.063 16 0.043 20 0.027 (a) Calculate the average rate of mass of Mg consumed per second for the first twenty second. (b) Calculate the average rate of reaction in moles of Mg consumed per second for the first eight second. (Relative atomic mass of Mg = 24.3) (c) What would happen to the concentration of H* as the reaction proceeds?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter18: Chemical Kinetics

Section: Chapter Questions

Problem 72AP

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