You analyze a sample of volatile liquid propyl acetate (c5h1002) by placing a small volume of it in a round-bottomed flask with a volume of 555.0 ml and an evacuated mass of 127.133 g. you submerge the flask in a water bath at 100.0°c and allow the volatile liquid to vaporize. you then cap the flask and remove it from the water bath. what will the mass of the 555.0-ml flask be after evaporation of the propyl acetate? (assume the pressure in the laboratory is 1.000 atm.)

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.