Question

how many atoms are present in 0.012kg of carbon 12?

Answer 1

6.023 *10^23 atoms are present in 0.012kg of c-12 as the no of atoms molecules or ions are same for any substance 

Answer 2

Given:

Mass of Carbon 12 = 0.012kg

To find:

Atoms present in 0.012kg of carbon 12=?

Calculation:

When the given value for mass from Kg to g, it gives

0.012 Kg = 12g

It is the matter of the fact that,

1 mole of every substance = $6.022\times 10^{23}$ atoms.

One mole C12 = 12g

∴ 12g of Carbon12 = $6.022\times 10^{23}$ atoms.

Conclusion:

Thus it is inferred that 0.012Kg of carbon 12 contains $6.022\times 10^{23}$ atoms.

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