Stoichiometry

Question 1

Formula mass

Answer 1

Mass of a single molecule in amu

Question 1

Molar mass

Answer 1

Mass of one mole of molecules (6.022 x 10^23 molecules)

Question 2

How is the number of atoms of an element in a mass of a compound found?

Answer 2

1. Use the given formula mass and divide it by the molar mass of the compound
2. Multiply by the amount of molecules in 1 mol of the compound (6.022 x 10^23 molecules)
3. Times by the number of atoms of the element in one mole of that compound

Question 3

How is the mass# of an element in a compound found

Answer 3