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

1 Answer
Sep 21, 2016

Answer:

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.