Investigating the effect of the size of marble chips on the rate of reaction with hydrochloric acid.

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Investigating the effect of the size of marble chips on the rate of reaction with hydrochloric acid

Aim:        To investigate the effect of the size of marble chips on the rate of reaction with hydrochloric acid.

Prediction:         In this experiment, I predict that the smaller the size of the marble chips are, the faster the rate of reaction is likely to be. This is mainly because there will be a larger surface area when using smaller chips, so the hydrochloric acid will be able to react with more of the marble chip than if large chips were used.

Diagram:                                                                                             

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Apparatus:

Gas burette, Conical flask, Stopwatch, Water bath, 2 clamp stands, 2 clamps, delivery tube, 1 gram of small, medium or large marble chips for each experiment, 30cm³ of HCl 2 mole- for each repeat of each acid concentration, Thistle funnel, Measuring cylinder, Electronic balance       

Method:         

  1. Set up the apparatus as shown above.
  2. Find a pair of safety spectacles and put them on before handling the     hydrochloric acid.
  3. In a beaker, pour in some hydrochloric acid ...

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