Submitted by: Submitted by allaizagem
Views: 10
Words: 623
Pages: 3
Category: World History
Date Submitted: 08/30/2015 07:42 AM
1. What is the percentage by mass of a solution made by dissolving 0.49 g of potassium sulfate in 12.70 g of water? 3.8%.
2. What is the percentage concentration of 75.0 g of ethanol dissolved in 500.0 g of water? 13.0% ethanol
3. A student wants to make a 5.00% solution of rubidium chloride using 0.377 g of the substance. What mass of water will be needed to make the solution? : 7.16 g H2O
4. What mass of lithium nitrate would have to be dissolved in 30.0 g of water in order to make an 18.0% solution? 6.59 g LiNO3
5. What mass of lithium nitrate would have to be dissolved in 30.0 g of water in order to make an 18.0% solution?
6. 10.00g BaCl2 is dissolved in 90.00g of water. The density of the solution is 1.09g/mL. Calculate the weight/volume percentage concentration of the solution.
7. What is the weight/volume percentage concentration of 250mL of aqueous sodium chloride solution containing 5g NaCl?
8. 2.0L of an aqueous solution of potassium chloride contains 45.0g of KCl. What is the weight/volume percentage concentration of this solution in g/100mL?
9. 15mL of an aqueous solution of sucrose contains 750mg sucrose. What is the weight/volume percentage concentration of this solution in g/100mL?
10. 186.4L of aqueous sodium hydroxide solution contains 1.15kg NaOH. What is the weight/volume percentage concentration of this solution in g/100mL?
11. What is the concentration in percent mass/volume of 150 mL of solution containing 30 g of solute?
12. What is the concentration by % m/v if 67 g are dissolved to make 1.2 L of solution?
13. What volume of a 40 % m/v solution contains 70 g of solute?
14. What amount of solute is dissolved to make 0.5 L of a 20 % m/v solution?
15. What amount of a 75 % m/v solution will be made if 50 g of solute are dissolved?
16. What is the concentration in % m/v if 0.55 kg of solute is dissolved to make 1.5 L of solution?
17. What is the percent by mass of 5.0 g of iron...