Practice Standard Electrode Potential (e°) (3.2.2.1) - Chapter 3: Electrochemistry

Practice: Standard Electrode Potential (E°)

Lesson 3.2.2.1Electrochemistry

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the temperature at which E° is measured?
Show hintHide hint
Remember the standard temperature for reactions.
Question 2.
What is the standard potential of the Standard Hydrogen Electrode (SHE)?
Show hintHide hint
Think of it as a baseline reference.
3Question 3.
What does the Standard Electrode Potential (E°) measure?
- The total charge in a cell
- The potential difference of an electrode
- The temperature of a solution
Show hintHide hint
Focus on the role of an electrode in reactions.
4Question 4.
Is the potential of the Standard Hydrogen Electrode (SHE) positive or negative?
- True
- False
Show hintHide hint
Consider what value SHE is defined as.
Question 5.
If the E° values for two reactions are E°(A/B) = +0.76 V and E°(C/D) = -0.34 V, will the reaction A + D → B + C occur spontaneously? Justify your answer.
Show hintHide hint
Consider how to calculate the overall E°.
Question 6.
Suppose you want to design a galvanic cell using zinc and copper with E° for Cu²⁺/Cu = +0.34 V and Zn²⁺/Zn = -0.76 V. What is the EMF? How would that affect the cell's operation?
Show hintHide hint
Remember to identify which electrode is the cathode and anode.

5 more questions in this section. Enroll free to practise them all.