Journal Entry:
Which do you think is more toxic, 1 mol of arsenic, As or 10 grams of arsenic? Explain your reasoning.

Learning Intentions

• We will learn how to translate numbers into scientific notation and vice versa.
• We will learn how to explain the quantity of a mole.
• We will learn how to determine molar mass of an element.

Closing Task:

 You can determine and compare the mass of 1 mole of different 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)