Calcium carbonate

[Satu11]

I have to make some calcuim carbonate samples....0.4/L, 0.6/L, 0.8/L, 1.0g/L

But calcuim carobnate wont disolve in water....can anybody help....

thanx

[fibreweb]

Go back to the teacher and find out what he is trying to do, reminding him Calcium Carbonate is insoluble

[Satu11]

Yes I did that but she helplessly looked at me...

Actually they are doing hard and soft water analysis...

thanx though for replying..

[Jazz]

http://www.practicalchemistry.org/exper ... 49,EX.html
this is great experiment for water hardness

[Vick]

Should you be using calcium carbonate or calcium chloride, in the past I have made "hard" water - 0.75g MgSO4 and 0.38g CaCl2 to 1 litre of water.

Vicki

[Satu11]

Thanx Vicki and Jazz

[Krysia Lee]

hi
I've used Calgon to soften water. I bought it in the supermarket along time ago.
Cheers Krysia