(A) The mass of $1 \ mol$ ($6.022 \times 10^{23}$ atoms) of carbon is defined as $12 \ g$. If the Avogadro number $(N_A)$ is changed to $6.022 \times

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(A) The mass of $1 \ mol$ ($6.022 \times 10^{23}$ atoms) of carbon is defined as $12 \ g$. If the Avogadro number $(N_A)$ is changed to $6.022 \times 10^{20} \ mol^{-1}$,the mass of $1 \ mol$ of carbon would become: $\text{Mass} = \frac{12 \ g \times 6.022 \times 10^{20}}{6.022 \times 10^{23}} = 12 \times 10^{-3} \ g$. Therefore,the mass of one mole of carbon changes.

Class 11 Chemistry Data Entry - Chemistry Level 0 of all question bank

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:

A
the mass of one mole of carbon
B
the ratio of chemical species to each other in a balanced equation
C
the ratio of elements to each other in a compound
D
the definition of mass in units of grams

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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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The figure shows a rough sketch of a meter bridge. The galvanometer $(G)$ shows zero deflection at a length $\ell \, cm$. Now,$R_1$ and $R_2$ are interchanged,then the balancing length increases by $25 \, cm$. Find the ratio $R_1/R_2$.

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