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## Stoichiometry Challenge Problem #2

Compound X isÂ the binary compound vanadiumÂ (V) bromide.Â Compound X reacts with ammonium sulfate according to the reaction:X + (NH

_{4})_{2}SO_{4}â†’ NH_{4}Br + V_{2}(SO_{4})_{5}- What is the formula for compound X?
- What is the balanced equation?
- If 270 g of compound X reacts with 0.83 L of a 3.0M solution of (NH
_{4})_{2}SO_{4}, which reactant is limiting? - How many moles of V
_{2}(SO_{4})_{5}would be made? - How many moles of NH
_{4}Br would be made? - How many moles of the non-limiting reactant would be left over?
- The above reaction is performed and the percent yield of V
_{2}(SO_{4})_{5}is found to be 72%. How many grams of V_{2}(SO_{4})_{5}were actually recovered? - How many moles of V
_{2}(SO_{4})_{5}were actually recovered? - How many moles of (NH
_{4})_{2}SO_{4}and how many moles of compound X actually reacted?

Last modified: Sunday, 3 June 2012, 1:19 AM