In three moles of ethane (C2H6), calculate the following: (i) Number of moles of carbon atoms. (ii) Number of moles of hydrogen atom (iii) Number of molecules of ethane

(a) 1 mole ​ contains two moles of C- atoms.

$\therefore$ No. of moles of C- atoms in 3 moles of

= 2 * 3

= 6

(b) 1 mole  contains six moles of H- atoms.

$\therefore$ No. of moles of C- atoms in 3 moles of

= 3 * 6

= 18

(c) 1 mole contains 1 mole of ethane- atoms.

$\therefore$ No. of molecules in 3 moles of

=

=