OCR Chemistry A – 5.2.3(f-k) Electrode Potentials

The ​ (a)   ​ (b)   agent has the (c)   standard electrode potential

• strongest
• oxidising
• most positive
• least positive
• biggest
• smallest

The ​ (a)   ​ (b)   agent has the (c)   standard electrode potential​

• strongest
• reducing
• least positive
• most positive
• smallest

The ​ (a)   shifts ​ (b)   for the redox system with the ​ (c)   positive standard electrode potential

• equilibrium
• right
• most
• left
• forward
• reaction

The ​ (a)   shifts left for the half-equation with the ​​ (b)   ​ (c)   standard electrode potential

• equilibrium
• least
• positive
• most
• negative
• reaction

Name the element whose reduction is used as a standard by which all electrode potentials are measured.

Who is SHE?

What type of half-cell is used for the SHE?

• metal/ion

• gas/ion

• ion/ion

• gas

State the material used for the electrode in a gas/ion half cell

State the material used for the electrode in an ion/ion half cell

Give the concentration (mol dm^–3) of H⁺ in a standard solution for reactions involving acid. Give your answer to 3 signficant figures