A) Determine the freezing point of an aqueous solution created from 3.5 g of Na3PO4 added to 120.0 g of water. The molal freezing point depression constant of water is 1.86 °C/m. Report your answer to 2 significant figures in degrees celcius but do not type in the units. B) For the first order reaction 2X --> N + 3P, the half life is measured as 50 seconds. If the initial solution concentration is 3 M, how long must the reaction proceed to consume 30% of the original amount of X? Give your answer in seconds.

A) Determine the freezing point of an aqueous solution created from 3.5 g of Na3PO4 added to 120.0 g of water. The molal freezing point depression constant of water is 1.86 °C/m. Report your answer to 2 significant figures in degrees celcius but do not type in the units. B) For the first order reaction 2X --> N + 3P, the half life is measured as 50 seconds. If the initial solution concentration is 3 M, how long must the reaction proceed to consume 30% of the original amount of X? Give your answer in seconds.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 113QRT

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