3.66grams of one hidrokarbure with w(C)=0.8571and W(H)=0.1429 that reacts with Brand ir earns 12.015grams of derivat of Br with relative molecular hight 229.8.All coficients that expres equation of cimic reaction are 1.

please can you tell me how is this exercise bye.

Your question makes no sense at all. It's gibberish.