In order to find the relative molecular mass of a liquid hydrocarbon, X, the liquid was injected into a syringe oven that was kept at a temperature of 100 °C. After vaporisation of the injected liquid it was found that 0.172 g of liquid produced 61.4 cm3 of vapour. The pressure was 1.01 × 105 Pa and the universal gas constant is 8.314 J K–1.
a Calculate the relative atomic mass of the hydrocarbon.
b When 20 cm3 of the vapour of X was burned in oxygen, 120 cm3 of carbon dioxide were
produced. Calculate the number of carbons in a molecule of X and hence find the molecular
formula of X.
c Explain why iodine is soluble in X but sodium chloride is insoluble in X.
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the electronic configuration of oxygen atom has 6 electron in its valency Shaili required Sumer electrons to get accident in the valency shall therefore oxygen atoms came close and each oxygen atom contributes to electrons foregrounding thus there exist to
Explanation:
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