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There are two unlabelled solutions - HSC - SSCE Chemistry - Question 8 - 2017 - Paper 1
Question 8
There are two unlabelled solutions. One is barium nitrate and the other lead nitrate. Which of the following could be added to the two unlabelled solutions to disti... show full transcript
Worked Solution & Example Answer:There are two unlabelled solutions - HSC - SSCE Chemistry - Question 8 - 2017 - Paper 1
Step 1
Which of the following could be added to distinguish between them?
Answer
In order to distinguish between barium nitrate and lead nitrate, one can use sodium chloride. When sodium chloride is added to the solutions, it will form a precipitate of lead chloride (PbCl2) with lead nitrate, while barium nitrate does not react to form a precipitate with sodium chloride. This unique reaction allows for the differentiation between the two solutions.