Posted by Kim on .
If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9g of silicon carbide is produced.
SiO2(s) + 3C(s) --> SiC(s) + 2CO(g)
what is the percent yield of this reaction?
Convert 50.0 g SiO2 to moles. moles = grams/molar mass
Using the coefficients in the balanced equation, convert moles SiO2 to moles SiC.
Convert moles SiC to grams. grams = moles x molar mass. This is the theoretical yield of SiC in the reaction.
%yield = (actual yield/theoretical yield)*100 = ??
The actual yield given in the problem is 27.9 grams SiC.