2007-10-03 09:47:09 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Mixtures containing a soluble compound with an insoluble compound must be separated before further analysis can be done. Separation can easily be achieved by dissolving the soluble compound in water. The insoluble compound will remain at the bottom in solid form and the soluble compound can be removed by decanting the liquid into a separate test tube. Use a centrifuge to speed up this process. The insoluble compound should be washed with water several times to remove all traces of soluble compound before subsequent analysis.
2007-10-03 09:51:11 · answer #1 · answered by kym_brousseau 2 · 0⤊ 1⤋
By filtration.
Sodium Chloride (NaCl) is soluble.
Calcium Carbonate (CaCO3) is insoluble.
NB All salts of Sodium are soluble.
All salts containing the Carbonate anion are insoluble except (Group 1 Metal/ alkali metal) Carbonates.
Method.
Put the mixture into water to dissolve the NaCl. Filter the solution. This will leave the CaCO3 on the filter paper. The NaCl is in the solution, which can be evaporated in a crucible to leave solid NaCl behind.
2007-10-03 09:56:11 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋
Add water. Stir. Filter the insoluble calcium, carbonate from the water soluble sodium chloride. Evaporate the water from the sodium chloride filtrate, voila!
2007-10-03 09:50:43 · answer #3 · answered by steve_geo1 7 · 1⤊ 0⤋
You can use solubility in water if sodium chloride is soluble and calcium carbonate is not.
2007-10-03 09:50:08 · answer #4 · answered by siciliana99 2 · 0⤊ 0⤋
Store them in different clear glass containers and label them accordingly.
2007-10-03 09:49:37 · answer #5 · answered by jakemonkman 1 · 0⤊ 1⤋