Electrochemistry Review

Identify the species that is oxidized in the reaction.

• Al

• Al³⁺

• Zn²⁺

• Zn

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Calculate the standard cell potential using the information above.

• 2.46 V

• -2.46 V

• -0.86 V

• 4.06 V

Tags

NGSS.HS-PS3-1

How long will it take to plate out 1.00 mol of nickel is 1.00 A is passed through a solution of Ni(NO₃)₂?

• 386,000 s

• 193,000 s

• 96,500 s

• 48,200 s

Calculate the value of ΔG° for the reaction shown above.

• -120 kJ

• 360 kJ

• -180 kJ

• -360 kJ

Tags

NGSS.HS-PS1-4

Which of the following substances would be the best choice for filling the salt bridge in the galvanic cell shown?

• Distilled water

• 1.0 M CH₃OH

• 1.0 M HCl

• 1.0 M KNO₃

What would occur if 0.500 M Cd(NO₃)₂ is added to the left beaker?

• voltage increases

• no change in voltage occurs

• voltage decreases but remains above zero

• voltage becomes zero and remains at zero

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-5

What would occur if the Cadmium electrode is made larger?

• voltage increases

• no change in voltage occurs

• voltage decreases but remains above zero

• voltage becomes zero and remains at zero

What would occur if the current is allowed to flow for 10 minutes?

• voltage increases

• no change in voltage occurs

• voltage decreases but remains above zero

• voltage becomes zero and remains at zero

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

What is the value of E°cell?

• 0.04 V

• 0.84 V

• 1.56 V

• 236 V

Tags

NGSS.HS-PS3-1

Which of the following is the net ionic equation for the overall reaction that occurs as the cell operates?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4