Kool Aid Concentration LAB

If 0.35 moles of NaCl was dissolved in enough water to make 200 ml of solution, what is the molarity?

• 0.35 M

• 1.75 M

• 0.175 M

• 3.5 M

You are asked to make 500 mL of a 0.250 M sodium chloride (NaCl) solution. How many moles of NaCl would you need?

You are asked to make 500 mL of a 0.250 M sodium chloride (NaCl) solution. How many grams of NaCl would you need?

• 14.6 grams

• 29.2 grams

• 7.25 grams

• 58.4 grams

You need to prepare 100 mL of a 0.050 M solution of calcium chloride (CaCl2). How many moles of CaCl2 are needed?

• 0.005 moles

• 0.05 moles

• 0.5 moles

• 5 moles

You need to prepare 100 mL of a 0.050 M solution of calcium chloride (CaCl2). How many grams of CaCl2 are needed?

• 1.11 grams

• .55 grams

• 3.33 grams

• 4.44 grams

Calculate the number of moles of Kool-aid powder needed for Cup #1 which contains 100 mL of a _____ M solution.

Calculate the number of grams of Kool-aid powder needed for Cup #1 which contains 100 mL of a 0.1 M solution, given that the molar mass of Kool-aid powder (sucrose, C12H22O11) is 342 grams.

Calculate the number of moles of Kool-aid powder needed for Cup #2 which contains 100 mL of a .4 M solution.

Calculate the number of grams of Kool-aid powder needed for Cup #2 which contains 100 mL of a 0.4 M solution, given that the molar mass of Kool-aid powder (sucrose, C12H22O11) is 342 grams.

Calculate the number of moles of Kool-aid powder needed for Cup #3 which contains 100 mL of a .7 M solution.