A student analyzes a sample of rock that contains the element calcium (Ca). In the student's analysis, the calcium in the rock is precipitated as CaC,04 by the addition of Na,C,04. It is determined by the student that 182.2 mg of the rock produces 120.7 mg of CaC,04. What is the mass percent of calcium (Ca) in the rock sample? molar mass Ca = 40.078 g/mol molar mass CaC,04 = 128.097 g/mol molar mass Na, C,O4- 133.9985 g/mol

A student analyzes a sample of rock that contains the element calcium (Ca). In the student's analysis, the calcium in the rock is precipitated as CaC,04 by the addition of Na,C,04. It is determined by the student that 182.2 mg of the rock produces 120.7 mg of CaC,04. What is the mass percent of calcium (Ca) in the rock sample? molar mass Ca = 40.078 g/mol molar mass CaC,04 = 128.097 g/mol molar mass Na, C,O4- 133.9985 g/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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