grade 8 chemistry program salts

Study of Acids Bases and Salts..

Study of Acids Bases and Salts..

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In the laboratory, ammonia is usually prepared by heating a mixture of ammonium chloride and slaked lime in the ratio of 2 : 3 by mass. The arrangement of the apparatus is shown in the figure 6.2. As ammonia is lighter than air, it is collected by the downward displacement of air...

Alkalis react with aqueous solutions of salts producing the precipitates of the respective metals as hydroxides. These precipitates are usually colored. From the color and texture of the precipitate, it is possible to identify the metal ions present in the solution. In some cases, the pre..

Tracer technique is used a) To find the solubility of sparingly soluble salt like lead sulphate. A lead salt containing known amount of radioactive lead is dissolved in water. Sulphuric acid is added to the aqueous solution to precipitate lead as lead sulphate...

Water of Crystallisation - When certain salts form crystals with a definite number of molecules of water, they chemically combine to do so in a definite proportion. Thus, the water of crystallisation is the number of water molecules that combine chemically in definite molecular proportion..

Albite (soda feldspar) NaAlSi 3 O 8 Borax (as tincal) Na 2 B 2 O 7 .10H 2 O Glauber's salt Na 2 SO 4 .10H 2 O Sodium chloride, (common salt) found as rock salt, in sea water and in lakes. Sodium nitrate (NaNO 3 ) as chile saltpetre..