Im doing a project which Im adding milk, Tide, salt, and oil to different cups of water and seeing which substance best prevents the evaporation of water. How do I measure how much WATER evaporated and not the other substances? any ideas?
2007-11-29 11:25:52 · 4 answers · asked by fluorine DX4 3 in Science & Mathematics ➔ Chemistry
The best way would be to know the mass of the containers, the mass of the water and the mass of the test additions, and mass them again the next day to determine evaporation.
Oil will cover the surface and stop evaporation.
salt will dissolve and no stop evaporation
milk is mostly water and will have no effect
tide should dissolve and not have much effect
2007-11-29 11:36:19 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋
nicely, to that end, the rationalization that a huge, shallow dish might paintings extra beneficial is via the fact there is extra floor section uncovered to the air than interior the deeper field. This reasons evaporation to ensue at a quicker value with the aid of fact extra water would be evaporated in much less time (with the aid of extra beneficial floor section).
2016-12-30 06:43:11 · answer #2 · answered by ? 3 · 0⤊ 0⤋
If you really want to know, you'll have to measure the specific gravity of each cup, before and after evaporation.
2007-11-29 11:32:09 · answer #3 · answered by jimmymae2000 7 · 0⤊ 0⤋
I suggest not worrying about it. Salt and oil are not volatile. The major volatile component in both tide and milk is water.
2007-11-29 11:31:42 · answer #4 · answered by Anonymous · 0⤊ 0⤋