What conditions are necessary to directly measure a standard electrode potential (E^o)?

• I and II
• I and III
• II and III
• I, II and III

Calculate the cell potential of voltaic cell

• –1.51
• - 0.03
• +0.03
• +1.51

Voltaic cell is made by connecting two half-cells below. Which statement is correct?

• Mn is oxidized and voltage is 1.06 V
• Pb is oxidized and voltage is 1.06 V
• Mn is oxidized and voltage is 1.32 V
• Pb is oxidized and voltage is 1.32 V

Calculate the cell potential of voltaic cell

• –1.60 V
• +1.60 V
• –3.12 V
• +3.12 V

Which statement is correct about value of E^ο?

• more positive value E^ο, greater driving force for reduction
• more negative value E^ο, greater driving force for reduction
• more positive value E^ο, greater the rate of reaction
• more negative value E^ο, greater the rate of reaction

Calculate the cell potential of voltaic cell

• + 0.01
• + 0.89
• + 1.77
• + 2.65

What is the equation and cell potential?

• 2Al³⁺ + 3Ni → 2Al + 3Ni²⁺ E^O = 1.89 V
• 2Al + 3Ni²⁺ → 2Al³⁺ + 3Ni E^O = 1.89 V
• 2Al³⁺ + 3Ni → 2Al + 3Ni²⁺ E^O = 1.43 V
• 2Al + 3Ni²⁺ → 2Al³⁺ + 3Ni E^O = 1.43 V

What happen when zinc is added to magnesium chloride?

• No reaction will take place
• Chlorine gas will be produced
• Magnesium metal will form
• Zinc chloride will form

What is E^o for the following reaction?

• +0.85
• +0.51
• –1.53
• –1.87

Which statement is correct?

• Ca²⁺ can oxidize Ni
• Ni²⁺ can reduce Ca²⁺
• Fe³⁺ can oxidize Ni
• Fe³⁺ can reduce Ca²⁺