If Avogadro number N_A is changed from 6.022 | vedclass

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(A) The mass of $1 \ mol$ of a substance is defined as the mass of $N_A$ particles of that substance.Currently,the mass of $1 \ mol$ ($6.022 	imes 10

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the mass of one mole of carbon

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(A) The mass of $1 \ mol$ of a substance is defined as the mass of $N_A$ particles of that substance.Currently,the mass of $1 \ mol$ ($6.022 	imes 10^{23}$ atoms) of carbon is $12 \ g$.If the Avogadro number $(N_A)$ is changed to $6.022 	imes 10^{20} \ mol^{-1}$,the mass of $1 \ mol$ of carbon would become the mass of $6.022 	imes 10^{20}$ atoms,which is $\frac{12 	imes 6.022 	imes 10^{20}}{6.022 	imes 10^{23}} = 12 	imes 10^{-3} \ g$.Since the number of particles defining a mole has changed,the mass of one mole of carbon changes.The ratios of chemical species in balanced equations and elements in compounds are based on the law of definite proportions and conservation of mass,which are independent of the numerical value of $N_A$.

If Avogadro number $N_A$ is changed from $6.022 \times 10^{23} \ mol^{-1}$ to $6.022 \times 10^{20} \ mol^{-1},$ this would change

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