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Calculate the number of moles of …

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Calculate the number of moles of carbon atoms and hydrogen atom in three moles of ethane.

Posted by . . 2 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Preeti Dabral 2 years, 4 months ago

1 mole of C₂H₆contains 2 moles of carbon atoms
$\therefore$ 3 moles of C₂H₆will C-atoms = 2 $\times$ 3 = 6 moles
1 mole of C₂H₆contains 6 moles of hydrogen atoms
$\therefore$ 3 moles of C₂H₆will contain H-atoms = 3 $\times$ 6 = 18 moles
1 mole of C₂H₆contains Avogadro's no., i.e. 6.02 $\times$ 10²³ molecules of ethane
$\therefore$ 3 moles of C₂H₆will contain ethane molecules = 3 $\times$ 6.02 $\times$ 10²³ = 18.06 $\times$ 10²³

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