The amount of heat released when 2.8g of ethane is completely burnt in excess of oxygen is 200kj what will be the heat of combustion of ethane? Answer plz...

Answer 1

Answer plz. Nope.
if you want heat of combutstion in kj/mole, change 2.8g to moles
If you want heat of combutstion in kj/grams, divide.