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Science TNSB Mentoring
Class 10 Crash course
Atoms and molecules
Molecular Mass, percent composition, and vapour density
5.
Number of molecules in gases
Question:
4
m.
Write the correct answer:
Evaluate
i. The number of moles.
ii. The number of molecules in
\(8.5\) \(L\) of \(CO_2\) at STP.
Note:
Give your answers with a three decimals.
i.
Answer:
\(mol\)
ii.
Answer:
\(\times10^{23}\) \(molecules\)
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