What is the frequency of red light with a wavelength of 4.2 x 10^-5

C3h8o3 - glycerol major species present when dissolved in water

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

What is another way to determine mass times acceleration?