Asked by Baiey
If 2.00 grams of potassium are allowed to react with 2.00 grams of bromine by the following equation, which reactant is the limiting reactant?
Answers
Answered by
DrBob222
2K + Br2 ==> 2KBr
mols K = 2/atomic mass K = about 0.05
mols Br2 = 2/molar mass Br2 = about 0.012
Convert mols K to mols Br2. That's about 0.05 x (1 mol Br2/2 mols K) = about 0.05 x 1/2 = about 0.025. Do you have that many mols Br2? NO, so Br2 is the limiting reagent.
mols K = 2/atomic mass K = about 0.05
mols Br2 = 2/molar mass Br2 = about 0.012
Convert mols K to mols Br2. That's about 0.05 x (1 mol Br2/2 mols K) = about 0.05 x 1/2 = about 0.025. Do you have that many mols Br2? NO, so Br2 is the limiting reagent.
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