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A hydrocarbon contains 82.8%of carbon . Find it's molecular formula if vapor density is 29 |
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Answer» 1. Vapour Density = Molar mass of gasMolar mass of H229 =M2Molar mass of compound = 58 2. The gas contains 82.8% of C and 17.2% of H. ATOMIC mass of C = 12 Atomic mass of H = 2 So, NUMBER of MOLES of C = 82.812=6.9 Number of moles of H = 17.21=17.2 3. Simplest ratio : C = 6.96.9=1 H = 17.26.9=2.4 ≈2 So, MOLECULAR mass is C4H10. |
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