Solution Concentrations - Wolfpack Chemistry
Solution Concentration and Dilution
1. Calculate the molarity of a solution that contains 0.0345 mol NH4Cl in 400. mL of solution.
2. How many moles of HNO3 are present in 35.0 mL of a 2.20 M HNO3 solution?
3. A 1.50 M KOH solution contains 0.125 mol KOH. What is the volume of the solution in mL?
4. Calculate the number of grams of KBr in 0.250 L of a 0.150 M KBr solution.
5. Calculate the molarity of a solution containing 4.75 g of Ca(NO3)2 in 0.200 L of solution.
6. You have a stock solution of 14.8 M NH3.
a. How many mL of this solution should you dilute to make 100. mL of 0.250 M NH3?
b. If you take a 10.0-mL portion of the stock solution and dilute it to a total volume of 0.250 L, what will be the concentration of the final solution?
7. How many mL of 6.0 M HNO3 would you need to make a solution of 250 mL of 1.0 M HNO3?
8. You dilute 25.0 mL of an 8.0 M NaOH solution to 150. mL. What is the concentration of the final solution?
9. Starting with solid sucrose, C12H22O11, describe how you would prepare 125 mL of 0.150 M C12H22O11 solution.
10. Describe how you would prepare 400. mL of 0.100 M C12H22O11 starting with 1.50 M C12H22O11.
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