CHEM104 / CHEM 104 Module 4: (Latest Update 2026 / 2027) General Chemistry II with Lab | Questions & Answers | Grade A | 100% Correct - Portage Learning

CHEM104 / CHEM 104 Module 4:
(Latest Update ) General
Chemistry II with Lab | Questions &
Answers | Grade A | 100% Correct -
Portage Learning

Electrochemistry




Question:
Write cell schematic for:
Ag + Au^+1 = Ag^+1 +Au
Answer:
1. Start with the anode side, which is the oxidation reaction and then after that
do the cathode side, which is a redox reaction.


Ag | Ag^+1 || Au^+1 | Au

,Question:
Cell potential
Answer:
Difference in potential between two half cells




Question:
Standard cell potential
Answer:
Difference in potential between two half cells when measured under standard
state conditions




Question:
Standard hydrogen electrode
Answer:
A simplified reference for sharing self potential measurements within an
assigned potential of 0 V. Contains a stream of hydrogen gas and occurs at
standard state conditions.

,Question:
Electrode potential
Answer:
The potential measured for a half cell comprised of X acting as a cathode in
the SHE acting as the anode




Question:
Standard electrode potential
Answer:
The potential measured for a half cell comprised of X acting as a cathode and
SHE acting as the an when they have cell X is under standard state conditions




Question:
Standard E cell potential and spontaniety
Answer:
1. Spontaneous when E cell is positive
2. Non spontaneous when E cell is negative
3. Non spontaneous when cathode E cell is less than anode E cell

, Question:
Relationship between K and spontaneity
Answer:
K>1 spontaneous
K<1 non spontaneous
K=1 at equilibrium




Question:
Relationship between delta G and spontaneity
Answer:
Delta G < 0 spontaneous
Delta G > 0 non spontaneous
Delta G = 0 at equilibrium




Question:
Relationship between standard E cell and spontaneity
Answer:
E cell > 0 spontaneous
E cell < 0 non spontaneous
E cell = 0 at equilibrium