Question

How do you calculate the number of grams in 11.3 moles?

Answer 1

You need to specify the chemical formula of your 11.3 molar quantity.

Explanation:

`"The mole"` is simply a collective number, like a `"dozen"`, or a `"Bakers' dozen"`, or a `"gross"`. One mole of stuff specifies `N_A`, `"Avogadro's number"`, individual items of stuff, where `N_A=6.022xx10^23*mol^-1`.

So we know we've got `11.3xxN_A` pieces of stuff. We need to know the molar mass of the stuff BEFORE we calculate the mass. If it's hydrogen atoms, we know we've got about `11.3*g`, if it's carbon, we know we've got about `11.3xx12*g`. Anway, it's over to you.