HS 1-7 Graded Questions (2 points each) 1. You are given two solutions. Solution A is made by dissolving 4.0 g of copper sulfate in 100 mL water.

HS 1-7 Graded Questions

(2 points each)

1. You are given two solutions. Solution A is made by dissolving 4.0 g of copper sulfate in 100 mL water. Solution B is made by dissolving 5.0 g of copper sulfate in 150 mL water. Which has the higher concentration, or are they the same?

1. You are given a 150.0 mL solution of 1.158 M Na3PO4.

   1. How many moles of Na+ are present in the solution?

   2. How many moles of PO4-3 are present in the solution?

1. You are given 25.0 mL of a 1.053 M solution of glucose (C6H12O6). If all the water is allowed to evaporate, what is the mass of glucose left in the container?

1. If 6.00 mL of a 1.248 M solution of NaCl was poured into 12.0 mL of distilled water, what is the concentration of the resulting solution?

1. A bottle of fertilizer contains a 6.0 M solution of ammonium nitrate (NH4NO3). If you wanted to fertilize your garden with 15.0 L of a 0.18 M solution, what quantities of the liquid fertilizer and water would you mix together to spray on your garden?

1. 103.0 mL of a 0.75 M solution of sucrose is mixed with 32.8 mL of a 2.7 M solution of ethanol. When these two solutions are mixed, no reaction occurs. What are the concentrations of sucrose and ethanol in the final solution?

1. In the Glucose Dilution Problem, describe how you created the 0.025 M glucose solution from the 1 M stock solution. Give details about the equipment used, which solutions you mixed together, and the amounts of each.

1. In the Acid Dilution Problem, describe how you created 500 mL of a 3 M HCl solution from the 11.6 M stock solution. Give details about the equipment used, which solutions you mixed together, and the amounts of each.

1. In the Making Stock Solutions from Solids Problem: Make a 100 mL solution that is 1.0 M of the Cl- ion using NaCl. Describe how you made this solution, including equipment used and the amounts of each substance used.

1. In the Making Stock Solutions from Solids Problem: Make a 100 mL solution that is 0.7 M of the Cl- ion using MgCl2. Describe how you made this solution, including equipment used and the amounts of each substance used.