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Chemistry Practical class XI, XII (11,12)
4. TO STANDARDISE THE BENCH SULPHURIC ACID AGAINST THE STANDARD ALKALI (NAOH) SUPPLIED, AND TO EXPRESS THE CONCENTRATION IN :
A) NORMALITY B) GM/LITRE C) MOLARITY AND D) PERCENTAGE THEORY: Reaction H₂SO4 + 2NaOH —--->Na₂SO4+ 2H₂O Ionically, 2H+ + 20H- —----> 2H₂O Bench acids…
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24. TO SEPARATE THE VOLATILE COMPONENT FROM THE GIVEN MIXTURE OF A VOLATILE AND A NON-VOLATILE SOLIDS.
APPARATUS REQUIRED i) Porcelain basin ii) Funnel iii) Filter Paper iv) Wire gauze v) Tripod stand vi) Burner CHEMICAL REQUIRED…
23. TO SEPARATE THE INSOLUBLE COMPONENT IN PURE AND DRY STATE FROM THE GIVEN MIXTURE OF A SOLUBLE AND AN INSOLUBLE SOLIDS.
APPARATUS: 1) Beakers 2) Test tubes and test tube stand 3) wire gauze 4) Filter paper 5) Procelain basin 6)…
TO STUDY THE ELECTROLYSIS OF WATER ACIDULATED WITH DIL. H₂SO4.
THEORY: Pure water is a weak electrolyte. It ionises very little. Hence it is not a good conductor of electricity.…
21. TO STUDY THE RATE OF FLOW OF A LIQUID THROUGH OSTWALD’S VISCOMETER AND TO DETERMINE THE RELATIVE VISCOSITY OF AN UNKNOWN LIQUID.
THEORY: Viscosity (like surface tension) is another property of a liquid that depends upon the intermolecular forces of attraction between…
