Zinc and sulfur react to form zinc sulfide, according to the reaction: 8Zn + S8 ---->8ZnS
a) If 2.00 moles of Zn are heated with 1.00 moles of S8, identify the limting reactant.
b) How many moles of excess reactant remain?
c) How many moles of product are formed?
2007-11-26 08:48:05 · 5 answers · asked by Caramel 2 in Science & Mathematics ➔ Chemistry
Tiebreaker: Could you tell me how you got b and c?
2007-11-26 09:07:36 · update #1
limiting reactant determines the extent of reaction.
zinc is the limiting reactant. because 2 moles zinc only requires 0.25 moles of sulfur but you have excess 0.75 moles sulfur
2 moles of zinc sulfide is formed.
2007-11-26 08:56:24 · answer #1 · answered by bongnate 3 · 1⤊ 0⤋
a. Limiting reagent is the Zn
b. 0.75 moles of S8 remain
c. 2.0 moles of ZnS was formed
UPDATE: I see bongnate beat me to it, but I was posting at the same time (and I'm the tie-breaker considering the first answer was out to lunch and forgot about reaction stoichiometry).
2007-11-26 16:56:54 · answer #2 · answered by Rush is a band 7 · 1⤊ 0⤋
the answers are allways pi
2007-11-26 16:52:20 · answer #3 · answered by engineer_pockets 2 · 0⤊ 2⤋
a) Sulfur
b) 1.00
c) 1.00
2007-11-26 16:52:14 · answer #4 · answered by Anonymous · 0⤊ 2⤋
umm...WHAT?
2007-11-26 16:59:45 · answer #5 · answered by IDK...my bff Rose♥ 3 · 0⤊ 1⤋