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12 Questions

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Calomel Electrode in Chemistry

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Questions and Answers

What is the role of the calomel electrode in laboratories?

Acting as an anode in galvanic cells

Measuring the concentration of chloride ions

Conducting potentiometric titrations

Determining the single electrode potential (correct)

How does the electrode potential of the calomel electrode change with increasing chloride ion concentration?

Increases

It remains constant

Becomes unpredictable

Decreases (correct)

What application does the calomel electrode have in pH determination?

Determining single electrode potential

Conducting potentiometric titrations

Serving as a reference electrode with glass electrode (correct)

Measuring the concentration of chloride ions

At 298K, what is the electrode potential of the calomel electrode for a saturated KCl concentration?

0.2422 V Signup and view all the answers

Which type of electrode is used in the determination of pH?

Calomel electrode Signup and view all the answers

What is another name for the auto catalytic reduction method of plating?

Electroless plating Signup and view all the answers

Which factor accounts for a lower corrosion rate?

Large anodic area Signup and view all the answers

What is essential in electroless plating?

Reducing agent Signup and view all the answers

What is the E.M.F of the concentration cell at 250 C?

0.1773 V Signup and view all the answers

What is the cathode reaction in the concentration cell?

Ag+ (aq) (10 M) + e- → Ag (s) Signup and view all the answers

What is the construction of a Calomel electrode?

Mercury placed at the bottom of a glass tube with a solution of KCl above it Signup and view all the answers

What is the purpose of a reference electrode in electrochemistry?

To measure the electrode potential of other electrodes Signup and view all the answers