Question

'X' L N₂ gas at STP contains 3*10²² molecules. The number of molecules in X L ozone at STP will be:

Answer 1

At STP, 1 mol = 6 × 10^23 molecules = 22.4 L

If x litre = 3 × 10^22 for N2 at STP, it'll be same for O3 also. Because at STP, when we talk about molecules, we consider only moles.
By Avogadro's law,
x litre of O3 will have 3×10^22 molecules.

x/2 litres will have 1.5×10^22 molecules.
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