View Full Version : Limiting Reactant
uzairhamid
Mar 20, 2009, 02:35 AM
A mixture of 5g of Ni and 2g of sulfur was heated to study the combining mass of nickel. What will be the limiting reactant for this reaction?
The options are:
A. Nickel B. 2 moles of Ni
C. Sulfur D. 5 moles of S
I think the answer is C because it is present in lesser amount. Can you confirm this?
Perito
Mar 20, 2009, 02:56 AM
I think your instructor wishes you to write down the chemical equation, balance it, and then calculate which is limiting.
Ni + S = NiS
One mole of Ni reacts with 1 mole of S
Now many moles of Ni do you have and how many moles of S do you have?
by the way, you are correct, but I think you've selected sulfur for the wrong reason. You're relying on weights and not on moles. That will not usually work.
uzairhamid
Mar 20, 2009, 02:59 AM
I think your instructor wishes you to write down the chemical equation, balance it, and then calculate which is limiting.
Ni + S = NiS
One mole of Ni reacts with 1 mole of S
Now many moles of Ni do you have and how many moles of S do you have?
by the way, you are correct, but I think you've selected sulfur for the wrong reason. You're relying on weights and not on moles. That will not usually work.
Thanks :-)