Question

which of the following has smallest no. of molecules (a) 11.22 of o^2 at NTP (b) 8.0 g of o^2 (c) 0.1 mole of o^2 (d) 2.24×10^4 ml of o^2​

Answer 1

here is the answer.

the correct option is D

as , 2.24 × 10⁴ ml of O2 = 22.4 × 10⁴ ml of O2

now :- 22.4 × 10³ml = 22.4litre

we know that:- 22.4 l = 1 mol

so , no . of molecules = 1× 6.023×10²³ .

hope it helps you.

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