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: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter16: Reaction Rates
Section: Chapter Questions
Problem 5STP
Related questions
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F300a8c43-a816-4179-a35f-e3b1fb2e09b2%2F9cdd1fab-80c1-4324-bb9c-ea035f9f8ebf%2Fm2org8u_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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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