Question:
Number of atoms in 560 $cm^3$ of oxygen at S.T.P. is
Number of atoms in 560 $cm^3$ of oxygen at S.T.P. is
Updated On: May 12, 2024
- $ \frac{1}{20} \times 6.022 \times 10^{23} $
- $ \frac{1}{40} \times 6.022 \times 10^{23} $
- $ \frac{1}{16} \times 6.022 \times 10^{23} $
- $ \frac{1}{32} \times 6.022 \times 10^{23} $
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The Correct Option is A
Solution and Explanation
$22400 \, cm^3$ of oxygen $(O_2)$ at S.T.P.
= $2 \times 6.022 \times 10^{23}$ atoms
$560\, cm^3$ of oxygen at S.T.P.
= $ \frac{2 \times 6.022 \times 10^{23} }{22400} \times 560$
= $ \frac{1}{20} \times 6.022 \times 10^{23}$ atoms
= $2 \times 6.022 \times 10^{23}$ atoms
$560\, cm^3$ of oxygen at S.T.P.
= $ \frac{2 \times 6.022 \times 10^{23} }{22400} \times 560$
= $ \frac{1}{20} \times 6.022 \times 10^{23}$ atoms
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Classification of Matter
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