Journal Entry:
 Imagine that you have 1 L of a 2.0  M sugar solution in a large container. You pour out 100ml into a beaker.

1. Did the concentration in the large container change?

2. Did the number of moles of sugar in the large container change?

Learning Intentions

• We will learn how to describe solution concentration at a particle level.
• We will learn how to calculate the number of moles of particles from the molarity and the volume of solution.
• We will learn how to differentiate  between  particles in ionic and molecular solutions.

Closing Task:

You can calculate moles in a specific molarity of solution given a volume.

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)