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If you have a look at the relative abundances, that is,People please help me here i dont get this one question from paper 2 seems quite simple
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s03_qp_2.pdf
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s03_ms_1 2 3 4 5 6.pdf
Q1 part C it says explain your answer. but i dont get the answer they gave in the mark scheme Why does the ratio have to be 3:1?
H35Cl (line at m/e value 36) has relative abundance 90
H37Cl (line at m/e value 38 has relative abundance 30
Hence these show that 35Cl and 37Cl are in the ratio 3:1