Molarity - Chemistry Solutions Worksheet | Massachusetts Institute of Technology

University:
Massachusetts Institute of Technology
Course:
5.03 | Principles of Inorganic Chemistry I
Academic year:

2022
Views:

257

Pages:

4
Author:

amrinderjeet kaur

Solutions Worksheet 1) 23.5g of sodium chloride is dissolved in enough water to make .683 L of solution. a. What is the molarity (M) of the solution? b. How many moles of NaCl are contained in 0.0100 L of the above sodium chloride solution? c. What volume (L) of this sodium chloride solution would contain 0.200 moles of sodium chloride? 2) 12.5g of glucose (C6H12O6) is dissolved in enough water to make 750.0 mL of solution. a. What is the molarity (M) of the solution? b. How many moles of glucose are contained in 237 mL of the above glucose solution? c. What volume (L) of this glucose solution would contain 0.079 moles of glucose? 3) 114.5 g of potassium chloride is dissolved in enough water to make 3.6 L of solution. a. What is the molarity (M) of the solution? b. How many moles are contained in 1.00 L of the above potassium chloride solution? c. How many liters (L) of this potassium chloride solution would contain 0.350 moles? 4) 7.58 g of 2-propanol (C3H8O) is added to enough water to make 1.50 L of solution. a. What is the molarity of the solution? b. How many moles are contained in 25.00 mL of the above 2-propanol solution? c. How many liters (L) of this 2-propanol solution would contain 0.00575 moles? 5) 46.0 g of barium nitrate is dissolved in 2.60 L of water. What is the molarity of nitrate ion in this solution? 6) A glucose (C6H12O6) solution is prepared by adding 5.00 grams of glucose to enough water to make 200.0 ml of solution. a. What is the %(w/v) of the solution? b. What volume (mL) of this solution would contain 0.0735 grams of glucose? c. How many grams of glucose would be present in 185 mL of this solution? 7) 234.5 g of potassium chloride is dissolved in enough water to make 3.6 L of solution. a. What is the molar concentration of potassium in this solution? b. How many moles of potassium are contained in 0.700 L of the above potassium chloride solution? c. How many liters (L) of this potassium chloride solution would contain 0.050 moles of K ? 8) 8. 0.250 g of aluminum sulfate is dissolved in enough water to make 150 mL of solution. a. What is the molar concentration of sulfate? b. How many moles of sulfate ion are contained in 0.0280 L of the above aluminum sulfate solution? c. How many liters (L) of this aluminum sulfate solution would contain 0.0025 moles of sulfate ? Molarity calculations (fill-in all the boxes) solute moles of solute Sodium chloride 3.00 moles Sodium chloride Sodium chloride Potassium nitrate Potassium nitrate volume ofsolution Concentration (Molarity) 0.500 L 13.5 g 0.150 L 0.375 moles Sodium chloride Potassium nitrate grams of solute 1.00 M 0.059 g 0.30 M 1.57 moles 0.770 M 1.98 g 2.00 M 0.288 L 0.197 M