If a nitrogen gas sample occupies a volume of 2.55 l at 22.0 °c and 0.860 atm, what is the mass of the n2 gas? (r = 0.0821 atm•l/mol•k

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?

Aman applies a force of 500n to push a truck 100m down the street how much does he do?

Achemical reaction is done in the setup shown , resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?