The water in a 150-ml flask is poured into a beaker that contains 600 ml of ethyl alcohol. which substance is the solvent in this mixture?

Ethyl alcohol is a solvent on the mixture.

Explanation:

Solution: It is a mixture of liquid in which solute (minor component) is distributed uniformly in a solvent (major component).

In a solution, mass of solute is always less than the mass of solvent.

Mass of water = 150 mL

Mass of ethyl alcohol = 600 mL

Mass of water < Mass of ethyl alcohol

Ethyl alcohol is a solvent on the mixture.

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%

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."