Question

If the molar mass of nylon is `10,000` `gmol^-1`, how many nylon molecules will there be in a `1.0` `kg` piece of nylon?

Answer 1

There will be `6.02xx10^22` molecules in one kilogram of nylon.

Explanation:

Nylon has a molar mass of `10,000` `gmol^-1`, or `10` `kgmol^-1`, so in `1` `kg` there is `0.10` `mol`. That means there will be `0.10xx6.02xx10^23` (Avogadro's number) of molecules, which means `6.02xx10^22` molecules.