Question

How many molecules are present in three moles of ethane ? a) 11×6.022×10 to thepower of 23 b)3 c)3×6.022×10 to the power of POWER23 d)3×8×6.032×10 to the power of 23

Answer 1

6.022x 10to the power 23 .
everything having 1 mole contains the same

Answer 2

Hi friend,

For every molecule,

1 mole= 6.023×10²³

Hence for 3 moles of ethane=

= 3×6.023×10²³ atoms(avogardo number).

The answer is option(c).

Hope this helped you a little!!!