Sample Problem 3.11
Calculating Percent Yield
PROBLEM:
Silicon carbide (SiC) is an important ceramic material that is made by allowing sand (silicon dioxide, SiO2) to react with powdered carbon at high temperature. Carbon monoxide is also formed. When 100.0 kg of sand are processed, 51.4 kg of SiC are recov
PLAN:
write balanced equation
find mol reactant & product
find g product predicted
percent yield
SOLUTION:
100.0 kg SiO2 x
= 1664 mol SiO2
mol SiO2 = mol SiC = 1664 mol
1664 mol SiC x
= 66.73 kg
x100
= 77.0%
x
x
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