Chemistry Mole Calculation Quiz Name Date Write the chemical formula and then calculate the molar mass - round to the tenths place and include units. 1. Iron (II) oxide 2. Sulfuric acid 3. Dinitrogen pentoxide Write the chemical formula and then perform the following conversions. Round to the correct number of significant figures and include units. Show your work in the space provided. 4. How many moles are in 98.3 grams of aluminum hydroxide? 5. How many grams are in 3.3 moles of potassium sulfide? 6. How many moles are there in 1.341023 molecules of carbon tetrachloride? 7. How many atoms are there in 2.382 liters of helium at STP? 8. (Bonus)How many atoms are there in 1.53 grams of copper (II) hydroxide