by Sunday | Sep 24 | NABTEB QUESTIONS
Le Chatelier’s principle states that if an external constraint is imposed on system. In chemical equilibrium position will adjust so as to reduce the effect of the constraint
by Sunday | Sep 24 | NABTEB QUESTIONS
Solutions The destructive distillation of Coal is the process of heating coal to a very high temperature in the absence of air (so that volatile components distil over). The products of such distillation are coke, ammonical liquor, coal far, coal gas
by Sunday | Sep 24 | NABTEB QUESTIONS
Solutions i. Diamond (Uses) – Drills and cutting of metals as pivot support, as jewelries. ii. Graphite (Uses) – As lubricants as electrodes, to line crucibles, as lead in pencil a block pigments in Paints as neutron moderator in atomic piles. iii. Coke (Uses) – As...
by Sunday | Sep 24 | NABTEB QUESTIONS
Solution 1000cm³ of solution contain 6.44 m of salt Therefore 100 cm³ of solution contains (6.44/1000 x 100) = 0.644 mole of salts Molar mass of KNO3 = 39 + 14 + (16 x 3) = 101 g/mole Therefore Mass of salt = 0.644 x 101 = 65 . 044 =...
by Sunday | Sep 24 | NABTEB QUESTIONS
Solution: A saturated solution is a solution which contains as much solute as it can dissolve at that temperature in the presence of undissolved solute particles. A supersaturated solution is a solution which has dissolved more solute than it can normally...
by Sunday | Sep 24 | NABTEB QUESTIONS
Solutions Exothermic Reaction Endothermic Reaction ΔH is negative ΔH is positive Heat is liberated from surrounding Heat is absorbed from surrounding Preaction vessel is always warm Reaction vessel is always cold No external heat supply to system There is an external...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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