Question

When a hyrocarbon was completely burnt in air ,9.42g of carbon(iv)oxide and 3.87g of water were formed .find the empirical formula of hyrocarbon

Answer 1

CxHy+O2=CO₂+H₂O

$\frac{x}{12}=\frac{9.42}{44}=2.56909091$

$\frac{y}{2}=\frac{3.87}{18}=0.43$

$=\frac{2.56909091}{12}:\frac{0.43}{1}=0.214090909:0.43=1:2$

CH₂ methylene