Determination of formulae - 3.2 (3) Flashcards
Page 24 (7 cards)
1
Q
What is hydrated?
A
many coloured crystals
2
Q
What is part of the coloured crystals’ crystalline structure?
A
water molecules
3
Q
What is this water known as?
A
water of crystallisation
4
Q
When blue crystals of hydrated copper sulfate are heated, what happens?
A
the bonds that hold the water within the crystal are broken and the water is driven off
5
Q
When the bonds are broken, what then happens?
A
this then become white anhydrous copper sulfate
6
Q
How is the water of crystallisation shown in the formula of hydrated copper sulfate?
A
with a large dot between the compound formula and the five water units
7
Q
What is the equation for when water is removed?
A
CuSOv4.5Hv2O (s) HYDRATED —> CuSOv4 (s) ANHYDROUS + 5Hv2O(l)
