Calculate the moles of argon gas at STP in 33 L. Round answer to 2 significant figures.

Can someone me with 1 to 4 plz. fast

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

Fred is studying a substance that is made out of only one element. this means that