Asample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. the pressure of the sample is 0.90 atmosphere and the temperature is 298 k. what is the volume of the sample at stp?

a. 41 ml
b. 49 ml
c. 51 ml
d. 55 ml

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?