1.10. In three moles of ethane (C2H6), calculate the following:
(i) Number of moles of carbon atoms
(ii) Number of moles of hydrogen atoms
(iii) Number of molecules of ethane
1.10. In three moles of ethane (C2H6), calculate the following:
(i) Number of moles of carbon atoms
(ii) Number of moles of hydrogen atoms
(iii) Number of molecules of ethane
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1 Answer
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1.10. (i) 1 mole of C2H6 contains 2 moles of carbon atoms
Therefore, no of moles of C atoms in 3 moles of C2H6 = 6 moles
(ii) 1 mole of C2H6 contains 6 moles of hydrogen atoms
Therefore, no of moles of H atoms in 3 moles of C2H6 = 18 moles(iii) 1 mole of C2H6 contains 6.02 x 1023 molecules
Therefore, 3 moles of C2H6 will contain ethane molecules = 3 x 6.02 x 1023 molecules= 18.06 x 1023 molecules
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