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In three moles of ethane (C_(2)H_(6)), calculate : (i) Number of moles of carbon atoms (ii) Number of moles of hydrogen atoms (iii) Number of molecules of ethane |
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Answer» Solution :(i) 1 mole of `C_(2)H_(6)` contains 2 moles of carbon atoms `therefore` 3 mole of `C_(2)H_(6)` will C-atoms = 6 moles (II) 1 mole of `C_(2)H_(6)` contain 6 moles of HYDROGEN atoms `therefore` 3 moles of `C_(2)H_(6)` will contain H-atoms = 18 moles (III) 1 mole of `C_(2)H_(6)` contains Avogadro's no. i.e., `6.02xx10^(23)` molecules `therefore` 3 moles of `C_(2)H_(6)` will contain ethane molecules `=3xx6.02xx10^(23)=18.06xx10^(23)" molecules"` |
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