Dispose of the copper, aluminum wire, and filtered liquid as directed. DATA TABL
ID: 983472 • Letter: D
Question
Dispose of the copper, aluminum wire, and filtered liquid as directed. DATA TABLE Mass of crucible (g) 9.1082g Mass of crucible and ghdrated sample (g) 10.1719g Mass of hydrated sample (g) DATA ANALYSIS 1. How many moles of 1.0637g Mass of crucible and dehydrated sample (g) 9.9682g Mass of dehydrated sample (g) 0.86g Mass of water evolved (g) 0.2037g mass of empty watch glass (g) 26.0230g Mass of watch glass and copper (g) 26.883g mass of copper (g) 0.46g 1. how many moles of water were in your sample of copper chloride hydrate? 2. How many moles of copper were in your sample of copper chloride? 3. How many moles of chlorine were in your sample of copper chloride? 4. Write the proper chemical formula for the compound that you tested.Explanation / Answer
1 ) Moles of water = Wt / Mwt
= 0.2037 / 18
Moles of water present in copper chloride = 0.01 moles
2) Moles of copper = Wt / Mwt
= 0.46 / 63.5
Moles of copper present in copper chloride = 7.24 * 10-3 moles
3) Moles of chlorine = Wt / Mwt
= 0.40 / 35.5
Moles of chlorine present in copper chloride = 0.01 moles
4) Hydrated copper chloride formula :
CuCl2.2H2O