1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water? 2. A solution is made by adding 35 mL of toluene to 70 mL of benzene. What is the percent by volume of toluene? 3. A solution is formed by adding 25 g of sodium nitrate to 275 g of water. What is the percent by mass of sodium nitrate?
1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water? 2. A solution is made by adding 35 mL of toluene to 70 mL of benzene. What is the percent by volume of toluene? 3. A solution is formed by adding 25 g of sodium nitrate to 275 g of water. What is the percent by mass of sodium nitrate?
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter7: Sollutions And Colloids
Section: Chapter Questions
Problem 7.35E: Calculate the concentration in (v/v) of the following solutions: a.250.mL of solution contains...
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Transcribed Image Text:1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water?
2. A solution is made by adding 35 mL of toluene to 70 mL of benzene. What is the percent
by volume of toluene?
3. A solution is formed by adding 25 g of sodium nitrate to 275 g of water. What is the
percent by mass of sodium nitrate?
4. What is the percent by volume of a solution formed by mixing 85 mL of isopropanol with
245 mL of water?
5. An experiment requires a solution that is 80% ethyl alcohol by volume. What volume of
ethyl alcohol should be added to 400 mL of water to make this solution?
6. Calculate the mass of solute in a 10% salt solution if the mass of a solution is 250 grams.
7. A sugar solution was made by mixing 24 g of glucose with 200 g of water. What is the
percentage concentration by mass of the glucose in the solution?
8. What is the percent by mass of a solution made by dissolving 163 g of potassium cloride
in 755 g of water?
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