Question

Moles of C2H6 in 3.75x10 ^23 molecules of C2H6

Answer 1

Answer : The number of moles of
`C_2H_6` is, 0.622 moles

Solution :

As we know that,

1 mole contains
`6.022* 10^(23)` number of molecules.

As,
`6.022* 10^(23)` number of molecules of
`C_2H_6` present in 1 mole of
`C_2H_6`

So,
`3.75* 10^(23)` number of molecules of
`C_2H_6` present in
`(3.75* 10^(23))/(6.022* 10^(23))=0.622` mole of
`C_2H_6`

Therefore, the number of moles of
`C_2H_6` is, 0.622 moles

Answer 2

To determine the moles of C2H6 from the number of molecules, we use the avogadro's number to relate moles into molecules. From avogadro's number, 1 mol is equal to 6.022x10^23 molecules.

3.75x10 ^23 molecules C2H6 (1 mol / 6.022x10^23 molecules ) = 0.6227 mol C2H6

Hope this answers the question.