Journal Entry:
Consider two cans of carbonated soft drink. One is regular, and the other is diet.

1. Which do you think is more toxic, the regular soft drink or the diet soft drink? Explain your reasoning.

2. What information would help you answer this question? 

Learning Intentions

• We will learn how to use moles and molar mass to compare amounts of different substances.
• We will learn the safety of sweeteners.

Closing Task:

 You can use molar mass to compare the amounts of substances.

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)