*15 What is the relative molecular mass (Mr) of; (a) NH4NO3 (b) CuSO4.5H2O
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Card 17
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*16 State why the space inside a mass spectrometer is connected to a vacuum pump
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Card 18
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*17 A sample of strontium showed three peaks. First at m/z 86 with an abundance of 10%, second at m/z 87 with an abundance of 7%, third at m/z 88 with an abundance of 83%. Calculate the Ar to three s.f.
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Card 19
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What does Ar stand for?
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Card 20
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What does Mr stand for?
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Card 21
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Name three other uses of the mass spectrometer other than the average mass
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Card 22
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How do you work out the Ar from mass spec?
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Card 23
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What is a molecular ion M+?
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Card 24
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*18 In the mass spectrum of chlorine, explain why peaks due to chlorine atoms are present although chlorine gas contains only Cl2 molecules.
