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# aqa as chem 1 question !

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1. Use the Periodic Table to identify the species responsible for the peak at m/z = 64

Can someone please explain to me how you do this question the answer is Zn+
2. (Original post by newt1)
Use the Periodic Table to identify the species responsible for the peak at m/z = 64

Can someone please explain to me how you do this question the answer is Zn+
m/z is mass over charge, so you look at periodic table to see which element has mass closet to 64, which is zinc. And it must be 1+ as 64/1 = 64
3. (Original post by Science_help)
m/z is mass over charge, so you look at periodic table to see which element has mass closet to 64, which is zinc. And it must be 1+ as 64/1 = 64
If you use the Aqa insert, copper is closer to 64 at 63.5 compared to 65.5 of zinc, could you please explain the reason for choosing zinc?Thanks
4. (Original post by BJA98)
If you use the Aqa insert, copper is closer to 64 at 63.5 compared to 65.5 of zinc, could you please explain the reason for choosing zinc?Thanks
could oyu give me the context of the question??

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