For a given substance, what information links mass to moles? number of particles to moles?

1 Answer
Dec 28, 2016

Answer:

Molar mass links mass to moles.............

Explanation:

And number of moles is equivalent to number of particles.

One mole of substance specifies #6.022xx10^23# particles.

Thus #1*mol# of say, #CO_2(g)#, represents #6.022xx10^23# carbon atoms, and #2xx6.022xx10^23# oxygen atoms. Since I know from the Periodic Table, that #6.022xx10^23# carbon atoms have a mass of #12*g#, and that #6.022xx10^23# oxygen atoms have a mass of #16*g#, it follows that 1 mole of #CO_2# has a mass of #44*g#. Do you follow this?