BMAT 2009 Q10 - Chemistry

[Larakuzu]

Hey guys can you help me with this question?

[Juliette]

Hi!

Cx + O2 — H2O + CO2
for CO2: n=4,7/44=0,1
for C: 1:1 ratio so m=0,1 * 12 = 1,2 grams

Cx is 2g and C is 1,2g
so C = 1,2/2 * 100 = 60%

Hope this helps!!!

[Larakuzu]

thanks so much juliette!!