MCQ
The number of molecules in $8.96\;L$ of a gas at ${0\,^o}C$ and $1$ atmosphere pressure is approximately
  • A
    $6.02 \times {10^{23}}$
  • B
    $12.04 \times {10^{23}}$
  • C
    $18.06 \times {10^{23}}$
  • $24.08 \times {10^{22}}$

Answer

Correct option: D.
$24.08 \times {10^{22}}$
d
(d) $22.4\,L$ of a gas at $STP$ has no. of molecules $ = 6.023 \times {10^{23}}$

$\therefore $ $8.96\,L$ of a gas at $STP$ has no. of molecules $ = \frac{{6.02 \times {{10}^{23}} \times 8.96}}{{22.4}}$

$ = 2.408 \times {10^{23}}$$ = 24.08 \times {10^{22}}$.

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