Question

When hydrated copper(II) sulfate crystals are heated, anhydrous copper(II) sulfate forms. A mass of 12.5 g of hydrated copper(II) sulfate crystals is heated in a crucible until all the water of crystallisation is removed.
A mass of 8.0 g of anhydrous copper(II) sulfate forms.
Calculate the formula of hydrated copper(II) sulfate CuSO4.nH2O
Show your working.
[Mr of CuSO4 = 159.5 Mr of H2O = 18]
Mass of water = g
Water of crystallization (n) =
Formula of hydrated copper(II) sulfate =

Answer 1

The formula of hydrated copper(II) sulfate is CuSO4.10H2O

What is the formula of the hydrated copper (ii) sulfate salt?

The formula of the hydrated copper (ii) sulfate is determined as follows:

Mass of hydrated salt = 12.5 g

Mass of anhydrous salt = 8.0 g

Mass of water = 12.5 - 8 = 4.5 g

mole ratio of water and anhydrous salt is;

4.5/18 : 8.0/159.5

0.562 : 0.05

10 : 1

Water of crystallization (n) = 10.

Therefore, the formula of hydrated copper(II) sulfate is CuSO4.10H2O

Learn more about water of crystallization at: brainly.com/question/26146814

#SPJ1