Distinguish between calcium nitrate and magnesium nitrate by writing a chemical test.
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Dear student
You could test the solution with a soluble sulfate salt such as sodium sulfate. Magnesium ions are extremely soluble with sulfate, so no magnesium sulfate precipitate should form. Calcium ions, however, have a low solubility with sulfate, so as long as the sulfate test solution is concentrated enough a calcium sulfate precipitate (white) should form.
If you look up the solubility of MgSO4 in water at 20°C. it is around 35 g/100 mL, while that is CaSO4 is about 0.24 g/100 mL.
Hope it helps
regards
You could test the solution with a soluble sulfate salt such as sodium sulfate. Magnesium ions are extremely soluble with sulfate, so no magnesium sulfate precipitate should form. Calcium ions, however, have a low solubility with sulfate, so as long as the sulfate test solution is concentrated enough a calcium sulfate precipitate (white) should form.
If you look up the solubility of MgSO4 in water at 20°C. it is around 35 g/100 mL, while that is CaSO4 is about 0.24 g/100 mL.
Hope it helps
regards