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.
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2. Add dilute sodium hydroxide (NaOH) to the acid a few drops at a time while stirring with a glass stirring rod.
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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)
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4. Once it is neutralised (pH = 7 - green) pour the liquid into an evaporating dish and heat till it boils slowly.
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Observations: Write one observation for each step of the method.

1.
2.
3.
4.

Word equation for the reaction:

Balanced symbol equation for the reaction:

Testing Indicators-( junior & tyrese )

Testing Indicators

	Acid	Water	Base
Beetroot Extract	Dark pink	purple	green
Red cabbage Extract	Dark pink	Dark pink	orange/brown
Tumeric	yellow	Watery yellow	orange
Cranberry juice	pink	pink	Dark green