Question

the passage below describes an experiment. in each of three bowls, tom combined one cup of water and 20 grams of salt. he repeated this with another three bowls, substituting 20 grams of sugar for the salt. then he put one bowl on a stand over a bunsen burner, which he set to produce a small flame. the heat from the flame helped to evaporate the water. tom measured the amount of time from when the water started to boil to when it had completely evaporated. he did the same with the other five bowls. identify the question that the experiment can best answer. does the size of the flame used to heat water affect the time it takes the water to evaporate? does water mixed with salt evaporate faster than water mixed with sugar? does water mixed with salt or water mixed with sugar boil at a higher temperature?

Explanation:

Tom has two sets of bowls - one with salt - water mixture and another with sugar - water mixture. He measures the evaporation time for each. The variable being tested is the type of solute (salt or sugar), not the flame size or boiling temperature. So, the experiment is designed to compare the evaporation rates of water with different solutes.

Answer:

Does water mixed with salt evaporate faster than water mixed with sugar?