Answer :

thisisbenmanley
According to the periodic table, carbon's molar mass is 12.011 grams per mole (that's the small number under the element).  So, just multiply like this to get the answer:

[tex](2.5\ mol\ C)(\frac{grams\ C}{12.011\ mol\ C})=0.20814\ g\ C[/tex]

So, there are approximately 0.208 grams in 2.5 moles of carbon.
Carbon's atom mass is 12. So 1 mole of Carbon is 12 grams. We should multiply
12 by 2.5:
[tex]2.5\quad =\quad \frac { 5 }{ 2 } \\ 12\cdot \frac { 5 }{ 2 } \\ \frac { 60 }{ 2 } \\ 30\\ [/tex]

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