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Transcription of this question: 3.Dinitrogen monoxide, NZO, causes depletion of ozone in the stratosphere.(a)(b)Outline why ozone in the stratosphere is important.Different sources of NZO have different ratios of 14N: “N.0)(ii)State one analytical technique that could be used to determine the ratioof 1 ‘N: ISN.A sample of gas was enriched to contain 2% by mass of 15N with the remainderbeing IAN.Calculate the relative molecular mass of the resulting Nzo.[2](iii)Predict, giving two reasons, how the first ionization energy of ISN compares withthat of 14N.[2](c)Suggest why it is surprising that dinitrogen monoxide dissolves in water to give aneutral solution.

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