Voltaic Cell Concepts and Functions

This video tutorial by Udin on the Kim UD channel covers the topic of Sel Volta, an electrochemical cell that converts chemical energy into electrical energy through redox reactions. The video explains the components of Sel Volta, including electrodes (anode and cathode), and how to calculate the cell potential using specific formulas. Udin provides tricks to help remember key concepts and demonstrates problem-solving with an example. The tutorial concludes with practice questions to reinforce learning.

What is the primary function of a voltaic cell?

• To store electrical energy

• To convert electrical energy into chemical energy

• To convert chemical energy into electrical energy

• To produce heat energy

Which electrode in a voltaic cell undergoes oxidation?

• Cathode

• Anode

• Neither electrode

• Both electrodes

How is the cell potential of a voltaic cell calculated?

• By dividing the cathode potential by the anode potential

• By multiplying the potentials of the anode and cathode

• By subtracting the anode potential from the cathode potential

• By adding the potentials of the anode and cathode

Which of the following is true about the electron flow in a voltaic cell?

• Electrons flow from cathode to anode

• Electrons flow from anode to cathode

• Electrons flow in both directions

• Electrons do not flow

What is the role of the salt bridge in a voltaic cell?

• To store energy

• To prevent electron flow

• To maintain electrical neutrality

• To increase cell potential

In the example problem, which metal acts as the cathode?

• Iron

• Nickel

• Copper

• Zinc

What is the cell potential for the given example problem?

• 1.50 V

• 1.10 V

• 0.76 V

• 0.34 V

What is the significance of a positive cell potential?

• The reaction is at equilibrium

• The reaction does not occur

• The reaction is non-spontaneous

• The reaction is spontaneous

In the practice problem, what is the first step to determine the cell potential?

• Balance the chemical equation

• Determine the electron flow

• Calculate the total voltage

• Identify the anode and cathode

In the practice problem, which metal is likely to be the anode?

• Nickel

• Chromium

• Zinc

• Copper