Question

How do you calculate the number of molecules in 4.00 moles `H_2S`?

Answer 1

Multiply `4*mol` by `"Avogadro's number....."`

Explanation:

Here we use `"Avogadro's number"` as we would any other collective number, a dozen, a gross, a 100, or 1000........except that `"Avogadro's number"` is unfeasibly large......and specifies `6.022xx10^23*mol^-1`.

And thus for `H_2S` we have `4*molxx6.022xx10^23*mol^-1` `=` `24xx10^23` molecules. Can you tell me how many sulfur, and how many hydrogen atoms you got in this molar quantity? I think you could be able to do so.