posted by NONO .
Consider the following reaction
4Al + 3O2 = 2Al2O3
It takes 2.00 L pure oxygen gas at STP (0C ,1atm ) to react completely with a certain aluminum. What is the mass of aluminum reacted?
Use PV = nRT and solve for n = number of moles oxygen. Then use this link as an example for solving stoichiometry problems.
The mass will be 12.73 g ?!!!!