(B) The mass of $4.6 \times 10^{22}$ atoms is $13.8 \, g$. We know that $1 \, mol$ of an element contains $6.022 \times 10^{23}$ atoms (approximated a

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(B) The mass of $4.6 \times 10^{22}$ atoms is $13.8 \, g$. We know that $1 \, mol$ of an element contains $6.022 \times 10^{23}$ atoms (approximated as $6 \times 10^{23}$ atoms). Atomic mass $= \frac{\text{Mass} \times N_A}{\text{Number of atoms}} = \frac{13.8 \, g \times 6 \times 10^{23}}{4.6 \times 10^{22}}$. Atomic mass $= 3 \times 60 = 180 \, g \, mol^{-1}$.

Class 11 Chemistry Some Basic Concepts of Chemistry Atomic, Molecular and Equivalent masses

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If an element with a mass of $13.8 \, g$ contains $4.6 \times 10^{22}$ atoms,then the atomic mass of the element will be ..............

A
$290$
B
$180$
C
$138$
D
$13.8$

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Some Basic Concepts of Chemistry

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Atomic, Molecular and Equivalent masses

In a Victor Meyer's apparatus,$510 \ mg$ of a liquid on vaporization displaces $67.2 \ cm^3$ of dry air at $NTP$. What is the molecular weight of the liquid?

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Calculate the mass of a single atom of hydrogen.

Easy

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Calculate the atomic mass (average) of chlorine using the following data:

Isotope $\%$ Natural Abundance Molar Mass $(g/mol)$

$^{35}Cl$ $75.77$ $34.9689$

$^{37}Cl$ $24.23$ $36.9659$

(in $u$)

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The atomic mass of an element is $27$. If its valency is $3$,what is the vapor density of its volatile chloride?

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$A$ metal $(M)$ forms two oxides. The ratio $M:O$ (by weight) in the two oxides are $25:4$ and $25:6$. The minimum value of atomic mass of $M$ is

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Isotope	$\%$ Natural Abundance	Molar Mass $(g/mol)$
$^{35}Cl$	$75.77$	$34.9689$
$^{37}Cl$	$24.23$	$36.9659$

If an element with a mass of $13.8 \, g$ contains $4.6 \times 10^{22}$ atoms,then the atomic mass of the element will be ..............

Similar Questions

In a Victor Meyer's apparatus,$510 \ mg$ of a liquid on vaporization displaces $67.2 \ cm^3$ of dry air at $NTP$. What is the molecular weight of the liquid?

Calculate the mass of a single atom of hydrogen.

Calculate the atomic mass (average) of chlorine using the following data: Isotope $\%$ Natural Abundance Molar Mass $(g/mol)$ $^{35}Cl$ $75.77$ $34.9689$ $^{37}Cl$ $24.23$ $36.9659$ (in $u$)

The atomic mass of an element is $27$. If its valency is $3$,what is the vapor density of its volatile chloride?

$A$ metal $(M)$ forms two oxides. The ratio $M:O$ (by weight) in the two oxides are $25:4$ and $25:6$. The minimum value of atomic mass of $M$ is

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Calculate the atomic mass (average) of chlorine using the following data:

Isotope $\%$ Natural Abundance Molar Mass $(g/mol)$

$^{35}Cl$ $75.77$ $34.9689$

$^{37}Cl$ $24.23$ $36.9659$

(in $u$)