A 32.65 g sample of a solid is placed a flask. Toulene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid is 50.00ml. The solid and toluene weigh 58.58 g. The density of toluene at that temperature of the experiment is 0.864 g/ml. What is the density of the solid?

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added