Convert 3.01 x 1023 molecules of C2H6 to moles.

Answer 1

3.01 x 10^23 molecules x (1 mole/6.02 x 10^23 molecules) = ?? moles.
Note that the factor in parentheses is a conversion factor and it is arranged so that the unit we want to convert FROM cancels (in this case the unit we want to get rid of is molecules) and the unit we want to convert TO is mole and that unit does not cancel.

Answer 2

so basically what you're ANSWER IS 15 moles
youre going to multiply 3.01X10^23 by 30 g/mole
(30 g/mole is the molar mass of C2H6)
then after multiplying you get 9.03E+24 youll divide that by 6.02X10^23
and get 15 moles