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The qualitative test for chloride ions in solution is add dilute nitric acid then add silver nitrate solution - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Question 2
The qualitative test for chloride ions in solution is add dilute nitric acid then add silver nitrate solution. (i) Describe what you see if this test is carried out... show full transcript
Worked Solution & Example Answer:The qualitative test for chloride ions in solution is add dilute nitric acid then add silver nitrate solution - Edexcel - GCSE Chemistry - Question 2 - 2016 - Paper 1
Step 1
Describe what you see if this test is carried out on a solution containing chloride ions.
Answer
When dilute nitric acid is added followed by silver nitrate solution to a solution containing chloride ions, a white precipitate of silver chloride (AgCl) is formed. This indicates the presence of chloride ions in the solution.
Step 2
Step 3
Describe the difference between a qualitative and a quantitative test.
Answer
A qualitative test is used to determine the presence or absence of a substance in a sample, providing evidence that a particular ion or compound exists. In contrast, a quantitative test measures the exact amount or concentration of a substance present in the sample. Qualitative tests often yield descriptive results, while quantitative tests provide numerical data.