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Given the reduction potential for Cr3+, if a solution containing Ni2+, Mn2+, Mg2+, Ca2+, and Li+...

Given the reduction potential for Cr3+, if a solution containing Ni2+, Mn2+, Mg2+, Ca2+, and Li+ was treated with elemental Cr, which elemental metal would be produced?

Ni2+ –0.28V

Cr3+ –0.74 V

Mn2+, –1.18V

Mg2+, –2.38

Ca2+, –2.76

Li+ , –3.04 V

a. magnesium

b. lithium

c. nickel

d. manganese

e. calcium

Could someone explain this concept?

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Answer #1

Q. Given metal ion treated with elemental co (1) Magnesium oxidation: Cr G3+ + 3 = 0.74V Reduction Mg 2+ + 2 ē mg Ered = -2.3

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