Making a solid into a stock solution?

A student is needing to make 1 liter of 0.1 M solution of NaCl for a seed germination experiment. She weighs out 58.44 grams of NaCl and pours it into an Erlenmeyer flask and dilutes it to a total volume of 1 L. She now has 1 liter of a 1M solution. She wants to save her stock solution for making ad

• Answer:

  0.10 moles NaCl/ liter x 1 liter = 0.10 moles NaCl are needed 0.10 moles NaCl x 1liter stock solution/ 1mole NaCl = 0.10 liters of stock solution 0.10 liters stock solution x 1000 mL/ 1liter = 100 mL Measure out 100 mL of the stock solution and dilute to a final volume of 1.0 Liter.