The document discusses qualitative analysis techniques for identifying unknown chemical species in salts. It describes:
1) Using physical properties like color and solubility in water to make inferences about the salts.
2) Common cation and anion tests including reactions with sodium hydroxide, dilute acids, barium chloride and silver nitrate that produce characteristic precipitates or color changes.
3) Safety guidelines and procedures for qualitative analysis including using small amounts of reagents and salts, keeping apparatus clean, and recording observations.
6.9 PREPARATION OF SALTS
CHEMISTRY KSSM FORM 4
REACTION BETWEEN ACID + ALKALI
REACTION BETWEEN ACID + METAL OXIDE
REACTION BETWEEN ACID + REACTIVE METAL
REACTION BETWEEN ACID + METAL CARBONATE
PURIFICATION OF IMPURE SALTS USINGRECRYSTALLISATION METHOD
DOUBLE DECOMPOSITION REACTION TO PRODUCE INSOLUBLE SALT
Qualitative analysis of group 4 cationsJessa Arino
The Group IV cations are Ba2+, Sr2+, Ca2+.
These metals form chlorides, sulfides and hydroxides that are soluble under that prevail in the precipitations of Group I, II, and III.
6.9 PREPARATION OF SALTS
CHEMISTRY KSSM FORM 4
REACTION BETWEEN ACID + ALKALI
REACTION BETWEEN ACID + METAL OXIDE
REACTION BETWEEN ACID + REACTIVE METAL
REACTION BETWEEN ACID + METAL CARBONATE
PURIFICATION OF IMPURE SALTS USINGRECRYSTALLISATION METHOD
DOUBLE DECOMPOSITION REACTION TO PRODUCE INSOLUBLE SALT
Qualitative analysis of group 4 cationsJessa Arino
The Group IV cations are Ba2+, Sr2+, Ca2+.
These metals form chlorides, sulfides and hydroxides that are soluble under that prevail in the precipitations of Group I, II, and III.
These are the class 12 practicals held in cbse schools and it contains all the inorganic and organic salt tests in a simplified way and all the other experiments
Class-10-Chapter-01-Science-Chemistry-Acid bases and salts.ppsxSoftcare Solution
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8.2 (a) meaning of qualitative analysis
1. Brown Ring Reaction Fig. 3. When excess NaOH is added, the precipitate redissolves as the Al(OH) 4 - complex ion is formed. Fig. 2. Al(OH) 3 precipitates with the addition of NaOH. Fig. 1. Al(NO 3 ) 3 in solution.
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