1. A solution is prepared by mixing 20g of sodium chloride in 80g of water.What are the concentrations of the solute and the solvent in % by mass?a. Solute 80%, Solvent 20%b. Solute 20%, Solvent 80%c. Solute 90%, Solvent 10%d. Solute 40%, Solvent 60%2. Rubbing alcohol is commonly used as an antiseptic for small cuts. It is soldas 70% (v/v) solution of isopropyl alcohol in water. What volume ofisopropyl alcohol is used to make 500 mL of rubbing alcohol?a. 300 mlc. 35 mLb. 350 mld. 30 ml

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1. A solution is prepared by mixing 20g of sodium chloride in 80g of water. What are the concentrations of the solute and the solvent in % by mass? a. Solute 80%, Solvent 20% b. Solute 20%, Solvent 80% c. Solute 90%, Solvent 10% d. Solute 40%, Solvent 60%

1. A solution is prepared by mixing 20g of sodium chloride in 80g of water. What are the concentrations of the solute and the solvent in % by mass? a. Solute 80%, Solvent 20% b. Solute 20%, Solvent 80% c. Solute 90%, Solvent 10% d. Solute 40%, Solvent 60%

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 9P

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Question

1. A solution is prepared by mixing 20g of sodium chloride in 80g of water.
What are the concentrations of the solute and the solvent in % by mass?
a. Solute 80%, Solvent 20%
b. Solute 20%, Solvent 80%
c. Solute 90%, Solvent 10%
d. Solute 40%, Solvent 60%
2. Rubbing alcohol is commonly used as an antiseptic for small cuts. It is sold
as 70% (v/v) solution of isopropyl alcohol in water. What volume of
isopropyl alcohol is used to make 500 mL of rubbing alcohol?
a. 300 ml
c. 35 mL
b. 350 ml
d. 30 ml

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