1. How many molecules are there in 1.73 moles of phosphorus pentachloride(PCl5)? 2. If I have 235.5 grams of carbon dioxide (CO2) gas, how many moles is this?

3. How many moles do 4.56 x 1024 formula units of lithium chloride (LiCl) have?

4. 213.4 grams of sodium nitrate (NaNO3) contain how many moles?

Determine the molar mass of the following compounds:

5.. Methylene Chloride (CH2Cl2) 6. Copper (II) Sulfate (CuSO4) 7. Nitric Acid (HNO3)

8. Zn(NO3)2 + LiCl → LiNO3 +ZnCl2 (Balance the equation)
Zinc chloride tablets are used to treat cold infections. How many grams of zinc chloride can be made through the reaction of 235 grams of zinc nitrate with excess lithium chloride?

9. NH4ClO4(s) + Al(s) → Al2O3(s) + N2(g) + HCl(g) + H2O(g)

(Balance the equation)

The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and aluminium powder, which react as follows:
What mass of aluminum should be mixed with 215 g of ammonium perchlorate (NH4ClO4) ?