posted by Adam on .
Could someone please tell me if I did this question right?
An incomplete reaction of 12.125 grams of propane proceeds as follows.
2C3H8+11O2 --> 3CO2+4H2O+2CO+C(s)
How many grams of solid carbon residue are produced as a product?
Balanced the given chemical equation:
2C3H8 + 11O2=3CO2+ 4H2O + 2CO + C
=7C3H8 + 19O2=6CO + 28H2O + 4CO + 11C
Convert 12.125 grams of propane to moles:
The ratio of propane to carbon is 7:11(or 1 to 1.5714). Therefore, for every mole of propane there will be 1.5714 moles of carbon.
1.5714(.27497mol)=.41630mol of carbon.
Convert back to grams.
In the given reaction, 5.0000g of solid carbon will be produced.
Thanks for your help.