Aim: To make simple observations during a reaction between calcium carbonate chips and powder with hydrochloric acid.
Equipment:
- Boiling tube
- calcium carbonate chips and powder
- hydrochloric acid
- measuring cylinder
- spatula
Method:
1. Measure 2mL of hydrochloric acid and pour this into your boiling tube.
2. Holding your boiling tube over a sink or heatproof may, add a pea-sized amount of calcium carbonate powder to your boiling tube, record your observations below.
1. Measure 2mL of hydrochloric acid and pour this into your boiling tube.
2. Holding your boiling tube over a sink or heatproof may, add a pea-sized amount of calcium carbonate powder to your boiling tube, record your observations below.
Observations of powered calcium carbonate- When the pea-sized amount of calcium carbonate was added to 2mL of hydrochloric acid it fixed for a few seconds then the reaction stopped.
3. Repeat the experiment, but this time use a chip of calcium carbonate that is roughly the same size as the spatula powder you used previously. Record your observations below.
Observations of calcium carbonate chip- When the chip of calcium carbonate was added to 2mL of hydrochloric acid it fixed for a long time.
Conclusion: In conclusion we found that calcium carbonate chips reacted for a longer time than the calcium carbonate powder because the chip needed more time to be broken down while the powder had already been broken down.
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