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Sagot :
The total number of molecules contained in 0.5 mole of O₂ is 3.0×10²³ molecules
Data obtained from the question
- Mole of O₂ = 0.5 mole
- Number of molecules =?
How to determine the number of molecules
From Avogadro's hypothesis,
1 mole of O₂ = 6.02×10²³ molecules
With the above information in mind, we can obtain the number of molecules in 0.5 mole of O₂ as illustrated below:
1 mole of O₂ = 6.02×10²³ molecules
Therefore,
0.5 mole of O₂ = 0.5 × 6.02×10²³
0.5 mole of O₂ ≈ 3.0×10²³ molecules
Thus, 3.0×10²³ molecules is present in 0.5 mole of O₂.
Learn more about Avogadro's number:
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