OBSERVATION SHEET Clearly describe all observations (note initial and final colo
ID: 1037323 • Letter: O
Question
OBSERVATION SHEET Clearly describe all observations (note initial and final color Part 1 ( note: only one of each couple will react) 1) Copper metal and zinc ion 2) Zinc metal and cupric ion (soln or metal), ppts, gas formation etc.) 3) ron metal and cupric ion 4) Copper metal and iron ion 5) Zinc metal and iron ion 6) Iron metal and zinc ion Part 2 ( 2 of the 3 will react) 7) Copper metal and hydrogen ion 8) Zinc metal and hydrogen ion 9) Iron metal and hydrogen ion Part 3 (note: only one of each couple will react... .the couples are (10 & 131 111 & 141112& 151 plus halide ion color of hexane layer after adding initial color of hexane layer + halogen (mix !) Halogen halide (and mixing !) 10) chlorine (Ch) 11) chlorine (Ch) 12) bromine (Br2) 13) bromine (Br2) 14) iodine (2) 15) iodine (02) +bromide ion (Br) + iodide ion (I) + iodide ion (I + chloride ion (CI ) + chloride ion (CI) + bromide ion (Br) Part 4 16a) Iron(IlIl) ion and iodide ion initial mixture obs- 17a) Iron(lil) ion and bromide ion Initial mixture obs 16b) Iron(lIl) ion and iodide ion mixed soln+ K,Fe(CN) 17b) Iron(lll) ion and bromide ion mixed soln+K,Fe(CN)s color of hexane layer after adding& mixing! after adding& mixing! Part 5 of copper s 18a) olutio-Cu turnings+ NH solution + AgNO bromine + copper metal 18) 18b) odine+ copper metal 19) 19a) 19b)Explanation / Answer
1) Copper ion will react to Zinc metal to give Copper metal and Zinc ion
as standard reduction potential of copper is positive (+0.34 V) and Zinc is negetive (-0.76V).
Color change - Blue to colorless
Cu2+ is Blue and Zn2+ is colorless
2) No reaction
3)
Iron metal will oxidised to Ferrous ion and Cupric ion will reduced to Copper metal
as standard reduction potential of copper is positive and Iron (-0.44 V) is negetive.
color change- Blue to dirty green
Cu2+ is Blue and Fe2+ is dirty green
4) no reaction
5) Zinc metal will oxidised to Zinc ion and Iron ion will reduced to Iron metal
as standard reduction potential of Zinc (-0.76 V) is more negetive than Iron (-0.44 V)
color change - Dirty green to colorless
6. No reaction
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