Directions: Encircle the letter of the correct answer.
1. What is the definition of molar mass?
A. number of grams per one mole of a substance
B. whole number ratio that is a multiple of a chemical formula
C. simplest, whole number ratio of a chemical formula
2. Molar mass is in units of
A. Grams B. grams per mole
C. moles per gram
3. What is the definition for Avogadro's number?
A. whole number ratio that is a multiple of a chemical formula
B. 6.02 x 10^23 particles per one mole of a substance
C. number of grams per one mole of a substance
4. Which would have more atoms?
A. 1 mole of Li B. 1 mole of Si C. 1 mole of Au
D. None, all are equal
5. What is the molar mass of carbon dioxide?
A. 44.01 g/mol B.45.01 g/mol C. 44.02 g/mol D. 44.0 g/mol​