The number of atoms in - 0-1- mole of a triatomic gas is- -160- -N-A - 6-02 - 10-23 - 1-800 - 10-22- 6-026 - 10-22- 1-800 - 10-23- 3-600 - 10-23-

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Mole Concept and Avogadro's Number

The number of...

Question

The number of atoms in $0.1$ mole of a triatomic gas is:
$(N_{A} = 6.02 \times 10^{23})$

1.800 \times 10^{22}

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6.026 \times 10^{22}

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1.800 \times 10^{23}

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3.600 \times 10^{23}

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Solution

The correct option is C $1.800 \times 10^{23}$
A molecule of triatomic gas contains $3$ atoms.
Given number of moles of gas= $0.1$
$∴$ Moles of atoms= $3 \times 0.1$
$1$ mole contains $6.02 \times 10^{23}$ atoms
$∴$ Number of atoms in given gas sample= $3 \times 0.1 \times 6.02 \times 10^{23} = 1.800 \times 10^{23}$ atoms

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The number of atoms in 0.1 mole of a triatomic gas is: (NA=6.02×1023)

The correct option is C 1.800×1023A molecule of triatomic gas contains 3 atoms.Given number of moles of gas= 0.1∴ Moles of atoms= 3×0.11 mole contains 6.02×1023 atoms∴ Number of atoms in given gas sample= 3×0.1×6.02×1023=1.800×1023 atoms

The number of atoms in $0.1$ mole of a triatomic gas is:
$(N_{A} = 6.02 \times 10^{23})$