Calculating the percent by mass concentration of a solution. 1. What is the percent by mass (m/m), concentration of sucrose (table sugar) in a solution made by dissolving 7.6 grams of sucrose in 83.4 grams of water? 2. What is the percent by mass (m/m), concentration of Na2SO4 in a solution made by dissolving 7.6 g of Na2SO4 in enough water to give 87.3 g of solution? Calculating the percent by volume concentration of a solution 3. A 125 ml sample of a mouthwash contains 12 ml of ethyl alcohol. What is the percent by volume of ethyl alcohol on the mouthwash? 4. A 25 ml of cough medicine contains 2 ml of ethyl alcohol. What is the percent by volume concentration of ethyl alcohol in the cough medicine?

Calculating the percent by mass concentration of a solution. 1. What is the percent by mass (m/m), concentration of sucrose (table sugar) in a solution made by dissolving 7.6 grams of sucrose in 83.4 grams of water? 2. What is the percent by mass (m/m), concentration of Na2SO4 in a solution made by dissolving 7.6 g of Na2SO4 in enough water to give 87.3 g of solution? Calculating the percent by volume concentration of a solution 3. A 125 ml sample of a mouthwash contains 12 ml of ethyl alcohol. What is the percent by volume of ethyl alcohol on the mouthwash? 4. A 25 ml of cough medicine contains 2 ml of ethyl alcohol. What is the percent by volume concentration of ethyl alcohol in the cough medicine?

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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