Ch 3. Ions + AAS

Question 1

Cations that precipitate with Cl-

Answer 1

Pb2+

Question 2

Cations that precipitate with SO42-

Answer 2

Pb2+, Ba2+, Ca2+

Question 3

Cations that precipitate with OH-

Answer 3

Pb2+, Cu2+ (blue), Fe2+ (green), Fe3+ (brown), Ca2+

Question 4

Tests to identify Pb2+

Answer 4

With Cl- forms a white precipitate

With I- forms a yellow precipitate

Question 5

Tests to identify Ba2+

Answer 5

With SO42- forms a white precipitate
Pale green flame colour
No precipitate with OH- or F- (unlike Ca2+)