Mass of an atom of carbon in gram is 19.92672 x 10-24. What is the atomic mass of Carbon in u? O A) 6 B) 12 O C) 13 O D) 14
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Answer:
The Correct Answer is (B) 12
Explanation:
Avogadro Number - The Avogadro constant is a proportionality factor that connects the number of constituent particles in a sample to the amount of material present. The reciprocal mole is its SI unit, and it is defined as NA = 6.02214076 X 10^23 mol^-1.
Mass of One mole of atom = Mass of One Atom X Avogadro's Number
Mass of One mole of atom = ( 6.022 X ) X ( 19.92672 X )
Mass of One mole of atom = 11.999987
Mass of One mole of atom = 12 u
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