A chemical reaction occurs when you mix together and acid and a base. The base cancels out the effects of the acid. The reaction is called a neutralisation reaction because a neutral solution is made if you add just the right amount of acid and base together.
Aim: To observe a neutralisation reaction.
Equipment: A test tube, test tube rack, 1 mol L-1 Na2CO3 (sodium carbonate), 1 mol L-1 HCI (hydrochloric acid), dropper bottle, Universal indicator solution.
Method: Add approximately 1-2 mL of Na2CO3 and place the test tube rack. Add 3-5 drops of Universal indicator solution.
- Using a dropper bottle, add HCI drop by drop. Be careful because adding even a small amount of extra acid can mean you'll miss the neutralisation point.
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