Journal Entry:
Imagine that you want to make 5 L of a 0.60 M NaCl solution for a saltwater aquarium. You have to determine the correct mass of NaCl needed to obtain the correct concentration or the fish will die.

1) What information do you have that will help you solve this problem?

2) What information do you need to help you solve this problem?  

Learning Intentions

• We will learn how to calculate the amounts necessary to create a solution with a desired volume and molarity.
• We will learn learn how to determine the number of grams of solute in a sample with a specific volume and molarity.

Closing Task:

You can calculate grams of a substance in a specific molarity.

Content Standards being covered:

Student understands what the letters and numbers stand for in a compound formula, can use those letter and numbers to determine how many of each type of element there are in a formula.

Student can create mathematical representations of chemical reactions and use them to make calculations about products and reactants.

Students can use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction. (HS-PS1-7 and CCC Energy and Matter)