An environmental scientist is investigating a crystalline residue found near an industrial waste site. The scientist suspects the sample is a solid mixture containing potassium bromide.
The sample is fully soluble in water.
Plan an experimental procedure the scientist could use to confirm that the solid residue contains both potassium ions and bromide ions.
The scientist has access to the following apparatus and chemicals:
Your plan should clearly describe the steps for both tests and the expected results/observations that would confirm the presence of each ion.
Identify an instrumental method that could be used to confirm the presence of potassium ions in the residue.
State one advantage of using the instrumental method identified in Part 2 rather than the chemical test described in Part 1.