A. Magnesium chloride has a formula of MgCl2 · 6H2O. What is its formula weight? B. You desire to make 1 L of 0.1 MgCl2 solu- tion. How much MgCl2 · 6H2O should you weigh? C. You need to make 25 mL of a 25-mM solu- tion of MgCl2. How much of the 0.1 M stock solution do you add to the 25 mL volumetric flask?

A. Magnesium chloride has a formula of MgCl2 · 6H2O. What is its formula weight? B. You desire to make 1 L of 0.1 MgCl2 solu- tion. How much MgCl2 · 6H2O should you weigh? C. You need to make 25 mL of a 25-mM solu- tion of MgCl2. How much of the 0.1 M stock solution do you add to the 25 mL volumetric flask?

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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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

4. A. Magnesium chloride has a formula of
MgCl2 · 6H2O. What is its formula weight?
B. You desire to make 1 L of 0.1 MgCl2 solu-
tion. How much MgCl2 · 6H2O should you
weigh?
C. You need to make 25 mL of a 25-mM solu-
tion of MgCl2. How much of the 0.1 M stock
solution do you add to the 25 mL volumetric
flask?

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