1.5 gram of C2 H6 on …
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Sia ? 6 years, 6 months ago
Hydrocarbon undergoes combustion to form carbon dioxide and water.
Molecular mass of carbon dioxide = 44 g
Mass of Carbon in 4.4 gm of carbon dioxide = {tex}\frac{12}{44} \times 4.4{/tex} = 1.2 g
Mass of Hydrogen in 2.7 gm of water = {tex}\frac{2}{18} \times 2.7{/tex} = 0.3 g
Therefore,
Total mass of Hydrogen and Carbon = (1.2 +.3)g = 1.5 g
This is the same mass before combustion.
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