2 (a) (i) Describe how you would make a solution of sodium chloride from sodium chloride crystals and distilled water - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Question 2
2 (a) (i) Describe how you would make a solution of sodium chloride from sodium chloride crystals and distilled water.
(ii) A test for chloride ions is carried out ... show full transcript
Worked Solution & Example Answer:2 (a) (i) Describe how you would make a solution of sodium chloride from sodium chloride crystals and distilled water - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Step 1
Describe how you would make a solution of sodium chloride from sodium chloride crystals and distilled water.
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Answer
To prepare a solution of sodium chloride, you would add sodium chloride crystals to distilled water. You can either dissolve the crystals by stirring the mixture in a suitable container, such as a test tube or a beaker.
Step 2
A test for chloride ions is carried out on the sodium chloride solution.
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Answer
The three steps in order for testing chloride ions are:
P: Add silver nitrate solution to the solution.
Q: A white precipitate forms.
R: Add dilute nitric acid to the solution.
Step 3
Choose the formula of sodium hydroxide.
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Answer
The correct formula of sodium hydroxide is C NaOH.
Step 4
Complete the sentence by putting a cross (X) in the box next to your answer.
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Answer
The ammonia gas is B alkaline.
Step 5
Give the name of the solid.
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