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Kisachek [45]
3 years ago
15

What is the colour of feso4.7h2o crystals

Chemistry
1 answer:
lora16 [44]3 years ago
4 0
Fesor.7h20 crystals or ferrous sulphate is a blue-green color.
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E^0_(Cr^{3+}/Cr)=-0.74V[/tex]

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The element  with negative reduction potential will lose electrons undergo oxidation and thus act as anode.The element with positive reduction potential will gain electrons undergo reduction and thus acts as cathode.

Here Cr undergoes oxidation by loss of electrons, thus act as anode. copper undergoes reduction by gain of electrons and thus act as cathode.

2Cr+3Cu^{2+}\rightarrow 2Cr^{3+}+3Cu

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