Name: _________________________ Period:____ Chemical Quantities I

Part A: Determine the molecular mass of these molecules: (show your work for credit)

1. carbon tetrachloride

2. sulfur dichloride

3. carbon disulfide

4. diarsenic pentoxide

5. silicon tetrahydride

Part B: Determine the formula mass of these ionic compounds: (show your work for credit)

1. magnesium iodide

2. nickel(II) sulfate

3. manganese(IV) oxide

4. sodium carbonate

5. ammonium phosphate