Question

Ti(s)+2Cl2(s)-TiCl4(s) compute theoretical yield in moles 8 mol Ti, 8 mol Cl2

Answer 1

This is a limiting reagent problem since amounts for BOTH reactants are given. I solve these by using the first reagent, ignoring the second, and calculating the moles of the product. Then I use the second reagent, ignore the first, and calculate the moles of the product. Both answers for the product can't be correct, of course; the correct answer in limiting regent problems is ALWAYS the smaller value. Here is a worked example for soving stoichiometry problems.
http://www.jiskha.com/science/chemistry/stoichiometry.html