posted by Anonymous .
if burning one mole of a carbohydrate generates 50 joules of heat, burning 0.2 mol(or one fifth of a mole) of that same carbohydrate will generate how many joules of heat ?
You're kidding, right?
What fraction of 1 mole is .2 mol?
Use the same fraction of heat generated.
Has all knowledge of algebra fled your brain?