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Making Table Salt

Aim: To make sodium chloride crystals by neutralising an acid with a base (alkali)

Method:
1. Measure 10ml of hydrochloric acid (HCl) in the small measuring cylinder and pour into a 50ml beaker.
(include photo here)
2. Add dilute sodium hydroxide (NaOH) to the acid a few drops at a time while stirring with a glass stirring rod.
(include second photo here)
3. Use the glass stirring rod to transfer a drop of the solution to a spotting tile. Add a drop of universal indicator. Is it neutral? (green)
(include third photo here)
4. Once it is neutralised (pH = 7 - green) pour the liquid into an evaporating dish and heat till it boils slowly.
(include fourth photo here)

Observations: Write one observation for each step of the method.

1.salt water
2.sodium chloride water
3.hydrogen
4.hydroxide

Word equation for the reaction:

Balanced symbol equation for the reaction:

Making Copper Sulfate crystals

Aim:
To make copper sulfate crystals (salt) by neutralising copper oxide (base) with a sulfuric acid (HSO)

Method:
Follow the method on Page 39 of your Scipad book.

Observations: (write an observation for each key stage of the process - full sentences please)

1.
2.
3.

Results:
Add 3 photos for the final stages of the experiment to illustrate the process.

Conclusion: (write a single sentence as conclusion - remember to look at your aim and write your conclusion as a response to your aim)

Word equation for the reaction:


Balanced chemical equation for the reaction: