The value for Avogadro's number is 6.022 x 10^23 molecules/mol
To get the number of moles of Ch4 from 3.58 x 10^24 molecules of Ch4, we will just solve like this;
(3.58 x 10^24 molecules Ch4) ÷ (6.022 x 10^23 molecules/mol) = 5.94 x 10^23 moles Ch4
Therefore, the number of moles of Ch4 is 5.94 x 10^23.
I hope, this will help you.
Merry Christmas and Happy New Year.
