Question

which of the following contain were molecules
I 1g co2
2 1g N2​

Answer 1

Answer. option 1 is the correct answer.

Answer 2

Answer:

For a molecule,

molecular weight in grams = Avogadro's number(NA)=6.023×10²³

(A) 1g CO2

44 gram of CO2=N Amolecules

∴ 1 gram of CO 2 contains441×NA molecules

(B) 1g N 2

28 gram of N 2=NAmolecules

∴1 gram of N 2contains 281×NA molecules

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