Rates Of Reaction.

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Morgan Richardson                Page

                                                                                

Chemistry; Rates Of Reaction

Plan:

This experiment is planned to investigate the rate of reaction when mixing Copper sulphate (CuSO4) with Zinc powder (Zn). My plan is to see what happens before, during and after the reaction takes place.

I will need the following equipment to carry out this investigation:

  • A 50ml marked measuring tube
  • A digital precision scale
  • 600ml of copper sulphate
  • A digital thermometer
  • A pot of Zinc powder
  • A sandpaper (to sand the Copper sulphate off the thermometer)
  • A pen and a paper (to record results.)
  • A beaker (to mix the elements)
  • A stirring stick

For the first preliminary results chart, the variable will be the amount of Zinc powder but the copper sulphate solution will be 30 ml.

Step-by-step:

In order to get satisfactory results out of this experiment, you’ll have to follow carefully the step-by-step instructions:

  1. Put a light plastic recipient on a digital precision scale.
  2. Reset the scale to zero.
  3. Put the amount of Zinc powder you need.
  4. If it isn’t the desired quantity, then add or subtract some of the Zinc powder.
  5. Once it is done, then measure the amount of copper sulphate in the 50ml marked measuring tube and adjust the desired amount.
  6. Pour the copper sulphate into the beaker and take its room temperature.
  7. Then add the Zinc powder and start stirring.
  8. Leave the thermometer in the glass recipient and record its highest reached temperature.
  9. Rinse and dry the beaker.
  10. Repeat steps 1 to 9.
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How I will make it a fair test?

  • Their must be the same amount of either Zinc or Copper Sulphate (depending on which I choose to be the constant and which I choose to be the variable depending on my preliminary results)
  • The temperature before the reactions must stay the same
  • The time must stay constant
  • The same equipment must be used
  • The equipment must be clean before each reaction

How much to use?

When zinc varies: 2 to 8g in 30ml of CuSO4

When copper sulphate varies: 30 to 120ml ...

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