State the qualitative tests to distinguish between halide ions in solution.
To test for chloride ions, add silver nitrate and a white precipitate should form, then add dilute ammonia and it should re-dissolve. For bromide ions, add silver nitrate and a cream precipitate should form, then add concentrated ammonia and it should re-dissolve. For iodide ions, add silver nitrate and a yellow precipitate should form, then the precipitate will not re-dissolve with any concentration of ammonia added.
RB
Related Chemistry A Level answers
All answers ▸In an experiment a burrette was identified as the largest source of uncertainty, how could this uncertainty be reduced?
Use the following data to explain why NaCl is soluble in water: ∆H = +31 kJmol-1, S(Na+(aq)) = 320.9 JK-1mol-1, S(Cl-(aq)) = 56.5 JK-1mol-1, S(NaCl(s)) = 72.1 JK-1mol-1 Are there any temperatures at which you would not expect NaCl to dissolve?
How does the reactivity of group 2 elements change down the group, and what is the cause of this trend?
State the H-O-H bond angle of a water molecule and explain why this is the case.