A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water. Which of the following properties of the sample is most helpful to determine if the liquid is water? color of the liquid

mass of the liquid

volume of the liquid

boiling point of the liquid

Its the mass of the liquid

Explanation:

because A student is given a sample of an unknown liquid to test in the laboratory.  The student thinks that the liquid is water.  Which of the following properties of the sample is  most helpful to determine if the liquid is water?A student is given a sample of an unknown liquid to test in the laboratory.  The student thinks that the liquid is water.  Which of the following properties of the sample is  most helpful to determine if the liquid is water?A student is given a sample of an unknown liquid to test in the laboratory.  The student thinks that the liquid is water.  Which of the following properties of the sample is  most helpful to determine if the liquid is water!

Mass

Explanation:

All of them would work, but they ask which one works the BEST, therefore, the mass of the liquid is the best choice. It's quicker, and more accurate.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.