In Three Moles of Ethane (C2H6), Calculate the Following:

1. Number of moles of carbon atoms.
2. Number of moles of hydrogen atoms.
3. Number of molecules of ethane.

In three moles of ethane (C₂H₆),

(i) Number of moles of carbon atoms is 6

(ii) Number of moles of hydrogen atoms is 18

(iii) Number of molecules of ethane is 18.069 × 10²³

Calculate Three Moles of Ethane (C₂H₆)

(i) 2 moles of carbon atoms are present in 1 mole of C₂H₆.

In 3 moles of C₂H_6, Number of moles of carbon atoms

= 2 × 3 = 6

(ii) 6 moles of hydrogen atoms are present in 1 mole of C₂H₆.

In 3 moles of C₂H₆,Number of moles of carbon atoms

= 3 × 6 = 18

(iii) 6.023 × 10²³ molecules of ethane is present in 1 mole of C₂H₆

In 3 moles of C₂H₆, Number of molecules

= 3 × 6.023 × 10²³ = 18.069 × 10²³