DRAFT: This module has unpublished changes.

Calculate the mass of:

 

a) the mass of the hydrated salt

 

39.65g - 37.76g = 1.89g

 

 

b) the mass of the anhydrous salt

 

38.78g - 37.76g = 1.02g

 

 

c) the mass of the water lost

 

39.65g - 38.78g = 0.870g

 

 

d) the percentage of water in the hydrated salt

 

 

= 46.03%

 

 

Number of moles of anhydrous salt:

 

Number of moles of water lost:

 

 

Formula weight of anhydrous copper(II) sulfate: 159.5 g/mol

Formula weight of water: 18.0 g/mol

 

Calculate the number of moles of anhydrous salt used for each trial:

 

 

Calculate the number of moles of water lost after heating for each trial:

 

 

Calculate how many water molecules are bound with one molecule of CuSO4:

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRAFT: This module has unpublished changes.