AL AND GENERAL CHEMISTRY1. Given below are the standard elestrode potentials of a number of Redox systemsA CeO 14H 6e = 20"+7 H;O8: Cu 1 2e = CaC: MeOing 8H 5eE+133VE-+034VtSeE MnE+1.5IVI +4H0D: Ce+ 2eE Zn 2e2 20E-1.36V= Zna) i) Define the term standard electrode potentialE-0.76Vi) Explain uning the E values why HCI can be used to acidify KCr,O but not KMnOil) Write down the cell diagram and calculate the emfof the cell made by coupling Bund E

Redox reactions are a kind of chemical reaction that involves oxidation and reduction. The element…

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Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.

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AL AND GENERAL CHEMISTRY
1. Given below are the standard elestrode potentials of a number of Redox systems
A CeO 14H 6e = 20"+7 H;O
8: Cu 1 2e = Ca
C: MeOing 8H 5e
E+133V
E-+034V
tSe
E Mn
E+1.5IV
I +4H0
D: Ce+ 2e
E Zn 2e
2 20
E-1.36V
= Zn
a) i) Define the term standard electrode potential
E-0.76V
i) Explain uning the E values why HCI can be used to acidify KCr,O but not KMnO
il) Write down the cell diagram and calculate the emfof the cell made by coupling Bund E

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