7/29/2019 78134973 Cape Unit 1 Chemistry Syllabus

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CAPE Chemistry Syllabus UNIT 1 page 9 of 9Identification of Cations and Anions (Module 3)

a) identify the cations K+, Na+, Ca2+, Ba2+, Cu2+ by their flame tests (refer

to atomic emission spectra in Module 1

b) identify aqueous cations Mg2+

, Al3+

, Ca2+

, Cr3+

, Mn2+

, Fe2+

, Fe3+

, Cu2+

,

Zn2+

, Ba2+

, Pb2+

, NH4+

(include reactions with OH-

(aq), CO32-

(aq) andNH3 (aq) and confirmatory tests)

c) explain the principles upon which the reactions are based (refer tobasic oxides, amphoteric oxides and complexation)

d) write ionic equations for the reactions of the cationse) identify anions CO3

2-, NO3-, SO4

2-, SO32-, Cl-, Br-, I-, CrO4

2- (include

the reactions with HCl, conc. H2SO4, Pb2+ (aq), Ag+ (aq) followed by

NH3 (aq), Ca(OH)2 (aq), Ba2+ (aq) followed by dilute acid. For NO3

- use

copper turnings and conc H2SO4 or add aluminium powder or zinc

powder in the alkaline solution and confirmatory tests for gases whereapplicablef) write ionic equations with state symbols for the reactions of then

anions

*********************END OF UNIT 1*********************