Question

When a 21.1-g sample of ethyl alcohol (molar mass 46.07 g/mol) is burned, how much energy is released as heat?

Answer 1

You need to supply some data........

Explanation:

You have the equation......

`H_3C-CH_2OH(l) + 3O_2(g) rarr2CO_2(g) + 3H_2O+Delta`

You can work out the molar equivalence of ethanol (approx. `0.5*mol)`; we need data for the enthalpy of combustion of ethanol.......over to you..........