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2. Answer the following questions.

B. Point out the difference between 12 g of carbon and 12 u of carbon
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12 g of carbon is the molar mass of carbon and 12 u of carbon is the mass of one carbon atom 

since ,

1u= 1 atomic mass unit =1.661\(\times 10^{-27} kg\) 

\(\therefore \) 12u = 19.93 \(\times 10^{-27}\) kg

and  12 g= 12\(\times 10^{-3}kg\) 

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