by Sunday | Sep 26 | NABTEB QUESTIONS
Fats are solid at room temperature/have high melting points while oil are liquids at room temperature or have low melting points.
by Sunday | Sep 26 | NABTEB QUESTIONS
When 4.6g of ethanol, CH3CH2OH were burned in a calorimeter containing 1.0kg of water, the temperature rises from 291k to 316k. If the specific heat capacity of water is 4.18kj-¹k¹ and the water equivalent of the calorimeter is 1.3kjk-¹ and the relative molar mass of...
by Sunday | Sep 26 | NABTEB QUESTIONS
The heat of combustion of a compound is the heat evolved/ given off when one mole of the compound is completely burnt in oxygen.
by Sunday | Sep 26 | NABTEB QUESTIONS
Add water to the mixture in order to dissolve the sodium chloride. Filter to obtain the sodium chloride as the filtrate. Evaporate the filtrate and the sodium Chloride solid is left behind in the evaporation dish. Put the sulphur residue in a filter paper and allow to...
by Sunday | Sep 25 | NABTEB QUESTIONS
1. No simple chemical test to distinguish the two alkynes. 2. But -1- ene decolorizes bromine water, while n- butane does not react with bromine water. But -1-ene reacts with acidified KmnO4 solution changing it from purple to colourless solution, n- butane does not...
by Sunday | Sep 25 | NABTEB QUESTIONS
Evaporation Crystallization Distillation Precipitation
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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