Consider the balanced equation Al2O3 +3 Cu > 2Al +3 CuO. If you have 1 mole of Al2O3 and an unlimited amount ?

Question

(cont'd) of Cu, how many moles of Al can you produce?

2. If you have 408 grams of Al2O3 and an unlimited supply of Cu, how many grams of Al can you produce (round to nearest gram)? Show your calculations.

3. Antonia wants to produce a reaction between methane and oxygen. At first she has no luck, so she decides to add more of each gas to her container, increasing the concentration of the reactants. Why might this work?

3b. Sometimes increasing the concentration of the reactants doesn't work. Why not?

3c. If increasing the concentration of the reactants doesn't work, what two other methods might Antonia try to get her chemicals to react?

Answer 1

2). 408g Al2O3 / 50 grams per mole = 8.16 moles Al2O3

8.16molAl2O3 * 2mol Al per 1molAl2O3 = 16.32 mol Al

16.32 mol Al * 13g per mol Al = 212.16grams Al

3). Adding more of each gas will increase the number of moles increasing the chance it will fulfill the balanced reaction equation.

b. a catalyst may be required (NOT SURE JUST A THOUGHT)

c. Add heat or fire.