15. How much calcium chloride would you dissolve in 250 mL to make 120 ppm primary standard solution of Ca2+ ion? (molar mass of Ca is 40 g/mol and the molar mass of CaCl2 is 111 g/mol) a. 83.3 mg b. 20.6 mg C. 15.0 mg d. 17.6 mg

15. How much calcium chloride would you dissolve in 250 mL to make 120 ppm primary standard solution of Ca2+ ion? (molar mass of Ca is 40 g/mol and the molar mass of CaCl2 is 111 g/mol) a. 83.3 mg b. 20.6 mg C. 15.0 mg d. 17.6 mg

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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Question

15. How much calcium chloride would you dissolve
in 250 mL to make 120 ppm primary standard
solution of Ca2+ ion? (molar mass of Ca is 40
g/mol and the molar mass of CaCl2 is 111 g/mol)
a. 83.3 mg
b. 20.6 mg
C.
15.0 mg
d.
17.6 mg

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