Testing For Inorganic Ions Flashcards
1
Q
How to test for presence of carbonate
A
1- add acid eg: HCl= forming CO2
2- bubble through limewater = cloudy
2
Q
How to test for sulphate ion
A
1- add acid to remove carbonates
2- add barium chloride = white precipitate
3
Q
Test for ammonium ion NH4+
A
1- add sodium hydroxide + heat
2- ammonia gas produced = turns litmus paper blue
4
Q
Test for hydroxides
A
1- hydroxides are alkali = turn litmus paper blue