A student was given a sample of hydrated Na2CrO4 (molar mass of anhydrous Na2CrO4: 162.0 g/mol). She determined the weight of the hydrated sample to be 2.58 g. After heating the hydrate to drive off all the water of hydration, she determined the weight of the anhydrous salt to be 1.77 g. Calculate the formula of the hydrated salt (round to the nearest whole number of water molecules/mol).

A student was given a sample of hydrated Na2CrO4 (molar mass of anhydrous Na2CrO4: 162.0 g/mol). She determined the weight of the hydrated sample to be 2.58 g. After heating the hydrate to drive off all the water of hydration, she determined the weight of the anhydrous salt to be 1.77 g. Calculate the formula of the hydrated salt (round to the nearest whole number of water molecules/mol).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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