Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by dissolving 100g of Na,B40, in 200 g of boiling water. He then carefully cools the solution slowly until some NazB407.10H2O crystallizes out. Calculate the g of NazB407.10H2O recovered in the crystals per 100 g of total initial solution (Na2B,0, plus H2O) if the residual solution at 55°C after the crystals are removed contains 12.4% NazB4O7.

Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by dissolving 100g of Na,B40, in 200 g of boiling water. He then carefully cools the solution slowly until some NazB407.10H2O crystallizes out. Calculate the g of NazB407.10H2O recovered in the crystals per 100 g of total initial solution (Na2B,0, plus H2O) if the residual solution at 55°C after the crystals are removed contains 12.4% NazB4O7.

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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