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To make pure sodium chloride from sodium hydroxide solution and dilute hydrochloric acid, a titration has to be used - Edexcel - GCSE Chemistry - Question 4 - 2014 - Paper 1
Question 4
To make pure sodium chloride from sodium hydroxide solution and dilute hydrochloric acid, a titration has to be used. The equation for the reaction is HCl(aq) + Na... show full transcript
Worked Solution & Example Answer:To make pure sodium chloride from sodium hydroxide solution and dilute hydrochloric acid, a titration has to be used - Edexcel - GCSE Chemistry - Question 4 - 2014 - Paper 1
Step 1
Which state symbols follow NaCl and H2O to complete the equation?
Answer
In the equation, sodium chloride (NaCl) is formed in aqueous solution, while water (H2O) is a liquid. Therefore, the correct state symbols are:
- NaCl: aq (aqueous)
- H2O: l (liquid)
The correct option is B:
NaCl H2O
A s l
B aq aq ✔
C s aq
D aq l