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A simple cell: voltage from two metals

Two metals in their salt solutions, a salt bridge and a voltmeter. Which pair gives the highest voltage?

Topic: ElectrochemistryGrade: 10Free

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What you do

  1. Put in the salt bridge: the voltmeter shows the voltage of the Zn | Cu cell.
  2. Change the metals (Left / Right) and measure three different pairs.
  3. Find the pair with the highest voltage. The further apart in the reactivity series, the higher the voltage.
  4. Use the E° values: what voltage does a Mg | Ag cell give (V)?

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