Kara wants to find out how much alcohol is in a mixture of water and alcohol, so she designs an experiment to find out. Kara knows that alcohol vaporizes and becomes a gas at a lower temperature than water, so she plans to heat the mixture of water and alcohol so that the alcohol will vaporize first. This will leave behind only water. The steps are shown in the diagram below.

What data will she need to collect during the experiment in order to find out how much alcohol was in the original mixture?
A.
the temperature at which the alcohol vaporizes in step two
B.
the color of the mixture in step one and the color of the water in step three
C.
the mass of the whole mixture in step one only
D.
the mass of the mixture in step one and the mass of the water in step three
PLS PLS give me an anser that is under standubal its my last qweshtan and i neeed to get it rite or im guna fail :.