How many molecules (or formula units) are in 138.56 g C4H10 Express your answer using four significant figures.

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

What is the rate law for the uncatalyzed reaction?

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?