Answer: One mole of electrons.
- A One electron
- B One mole of protons
- C One mole of electrons
- D One coulomb
Correct answer: C. One mole of electrons
Explanation: 1 Faraday = 96500 C/mol, the charge carried by exactly one mole of electrons.
In a Daniell cell, electrons flow externally from the zinc anode (oxidation) through the voltmeter to the copper cathode (reduction), while the salt bridge completes the circuit.
Concept context
Explore the link between chemical reactions and electricity. Covers galvanic cells, electrolysis, standard electrode potentials, the Nernst equation, and real-world applications like batteries and corrosion.