Page 40 - Big Ideas Year 10 sciPAD 2025

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40 SCIPAD - BIG IDEAS - BOOK 2
BASIS OF CHEMICAL REACTIONS
Making Salts
Aim: To produce sodium chloride salt by carrying out a neutralisation reaction.
Equipment: 50 mL and 250 mL beakers, dilute HCl (hydrochloric acid), dilute NaOH (sodium
hydroxide), 25 mL measuring cylinder, a glass stirring rod, spotting tile, Universal
indicator solution, tripod, gauze mat, Bunsen burner, evaporating basin.
Method:
Using the measuring cylinder measure 10 mL of HCl
and pour it into your 50 mL beaker.
Add dilute NaOH a few drops at a time while stirring
with the glass rod.
Keep adding NaOH and testing the solution by
repeating step 2. As you get closer to neutral you may
need to test the solution after every drop.
Every 10-15 drops stop adding the NaOH and use the
glass stirring rod to transfer a drop of the solution to a
spotting tile. Test its pH using Universal indicator.
Pour the neutral solution into an evaporating basin
and evaporate the water out of the solution using the
equipment set up shown above.
A P P R O X I M A T E V O L U M E S
A P P R O X I M A T E V O L U M E S
200 mL beaker
Water
Observations: 



1. Write a word equation for this reaction.

2. What is the name of the reaction happening in step 1? 
3. What is the name of the process you carried out in step 4? 

1
3 4
2
A P P R O X I M A T E V O L U M E S
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