Question

the number of carbon atoms present in the piece of limestone is​

Answer 1

Answer:

1mole limestone can (caco3)has mole carbon atoms therefore 0.01 mole limestone Atmos have 0.01 mole carbon atmos.we can say 0.01*Na carbon atom

Explanation:

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Answer 2

The number of carbon atoms present in the piece of limestone is​ $6.022\times 10^{21}$

Explanation:

Chemical formula of limestone is $CaCO_3$.

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{1g}{100g/mol}=0.01moles$

1 mole of limestone $(CaCO_3)$ contains=$6.022\times 10^{23}=18.07\times 10^{23}$ carbon atoms  

Thus 0.01 moles of limestone $(CaCO_3)$ contains =$\frac{6.022\times 10^{23}}{1}\times 0.01=6.022\times 10^{21}$ carbon atoms

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