Question

If you are given the number of molecules in an unidentified chemical compound can you calculate the number of moles in this sample

Answer 1

Yes.
Mols x Avogadro's Constant (6.02x10^23) = number of molecules.
You can rearrange that formula to find the number of Mols. Hope this helped

Answer 2

Answer: By using mole concept

Explanation:

We are given:

An unknown compound having some number of molecules.

To calculate the number of moles that are contained in a sample, we use mole concept:

According to mole concept:

1 mole of any compound contains $6.022\times 10^{23}$ number of molecules.

Using this relation and applying unitary method, we can easily calculate the number of moles of a compound.

For Example: A sample of water contains $10.8396\times 10^{23}$ number of molecules.

So, by using mole concept:

$6.022\times 10^{23}$ number of molecules are contained in 1 mole of a compound.

So, $10.8396\times 10^{23}$ number of molecules will be contained in $\frac{1}{6.022\times 10^{23}}\times 10.8396\times 10^{23}=1.8 moles$ of water