Question

The total nunber of neutrons present in 12 grams of C12 atoms

Answer 1

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Answer 2

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No of moles of carbon atoms = 12 g/12g/mole = 1 mole

We know that,
Number of atoms = number of moles x Avogadro number

= 1 x 6.022 x 10^23 = 6.022 x 10^23

In 1 atom of carbon there are 6 protons and 6 neutrons = 12 nucleons.
The number of nucleons = 6.022 x 10^23 x 12
= 7.2264 x 10^24

i hope its helpfull