Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as Na2CO3 · ¤H2O, where r is the number of moles of H2O per mole of Na2CO3. When a 2.046 – g sample of washing soda is heated at 25 °C, all the water of hydration is lost, leaving 0.758 g of Na2CO3.

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as Na2CO3 · ¤H2O, where r is the number of moles of H2O per mole of Na2CO3. When a 2.046 – g sample of washing soda is heated at 25 °C, all the water of hydration is lost, leaving 0.758 g of Na2CO3.

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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