In a similar analysis, a student determined that the percent of water in the hydrate was 25.3%. the instructor informed the student that the formula of the anhydrous compound was cuso4. calculate the formula for the hydrated compound.

Explanation:

Let us suppose there are x water molecules. Thus the formula of hydrated compound will be

To calculate the mass percent of element in a given compound, we use the formula:

Given : Mass percent of water = 25.3 %

Mass of water = g

Molar mass of hydrated compound = g

Putting in the values we get:

Solving for x we get:

Thus the formula of hydrated compound will be

the answer is 1 i believe

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.