If a solid metal is placed into an aqueous salt of a less reactive metal, a reaction occurs. This reaction is exothermic, so the temperature of the reaction mixture rises. The greater the difference in reactivity between the two metals, the more exothermic the reaction.
Cobalt, manganese and nickel are three metals that are all more reactive than copper and react with aqueous copper(II) sulfate. In each case, the temperature of the reaction mixture rises.
Plan an investigation to determine the order of reactivity of the three metals cobalt, manganese and nickel.
Your plan should explain how the results can be used to determine the order of reactivity of the three metals cobalt, manganese and nickel.
You are given powdered samples of cobalt, manganese and nickel, aqueous copper(II) sulfate and standard laboratory apparatus.
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Plan an investigation to determine the order of reactivity of the three metals cobalt, manganese and nickel. Your plan should explain how the results can be used to determine the order of reactivity of the three metals cobalt, manganese and nickel. You are given powdered samples of cobalt, manganese and nickel, aqueous copper(II) sulfate and standard laboratory apparatus.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “MP1 use a specified/known volume of aqueous copper(II) sulfate” …