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If Avogadro number $N_A$ is changed from $6.022\times10^{23}$ $mol^{-1}$ to $6.022\times10^{20}$ $mol^{-1}$, this would change:
A
the ratio of chemical species to each other in a balanced equation
B
the ratio of elements to each other in a compound
C
the definition of mass in units of grams
D
the mass of one mole of carbon
Detailed Solution
Mass of 1 mol ($6.022\times10^{23}$ atoms) of carbon = 12 g.
With the new $N_A$, mass of 1 mol ($6.022\times10^{20}$ atoms) = $\frac{12\times6.022\times10^{20}}{6.022\times10^{23}} = 12\times10^{-3}$ g.
So the mass of one mole of carbon changes.
With the new $N_A$, mass of 1 mol ($6.022\times10^{20}$ atoms) = $\frac{12\times6.022\times10^{20}}{6.022\times10^{23}} = 12\times10^{-3}$ g.
So the mass of one mole of carbon changes.