Reaction of solution of copper sulphate with iron nail
Answers
Explanation:
1. Only 2 trials have to be reported.
2. Perform the following procedure on two samples simultaneously.
3. Weigh a clean, dry 100 or 250 mL beaker.
4. Accurately weigh approximately 1.00 gram of iron powder into the beaker. Do not exceed
1.00 grams.
5. Measure 30 mL of 1.0 M CuSO4 solution into a graduated cylinder. Pour it into an
Erlenmeyer flask, and heat gently to almost boiling.
6. Slowly add the hot CuSO4 solution to the beaker containing the iron powder. Be sure the
addition is slow to avoid excess frothing and possible loss of material. It will help to avoid
frothing if a wooden applicator stick is placed in the beaker before adding the hot CuSO4
solution.
7. Swirl the flask to insure completeness of reaction. When the reaction has ceased, allow the
copper product to settle. Then carefully decant the liquid from the copper, (pour off the liquid
and leave the solid behind). You may observe a thin copper colored sheen on the surface of the
liquid which does not settle out. You may ignore this.
8. Add about 10 mL of distilled water to the solid copper and swirl to wash any remaining ions
from the copper.
9. Decant the wash water from the copper and add 10 more mL of distilled water, swirl and
decant again.
10. Now add several mL of acetone (CAUTION: Acetone is very flammable) to the copper.
Swirl and allow to stand a few minutes and decant off the acetone. Repeat with a second portion
of acetone. Discard the acetone in Organic Wastes. The acetone readily dissolves the water and
removes it. The acetone is easily removed by gently heating or by using a stream of air since
acetone has a low boiling point and readily evaporates. We will use gentle heat.
11. Heat the beaker with the copper product on low heat on a hot plate to evaporate the acetone.
Carefully break up any clumps of copper with a spatula, if drying proves difficult. Be sure not
to remove any copper from the beaker.
12. When the copper is dry, carefully dry the outside of the beaker and reweigh to find the mass
of copper formed.
13. For each run, calculate the moles of iron used and the moles of copper formed. Deduce
whether iron goes into solution as Fe+2 or Fe+3
Answer: The reaction of iron nail with copper sulphate solution is
⇒Displacement reaction
Explanation:
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