Asked by sara
describe two ways to separate a mixture of sulfur powder and sodium nitrate to collect pure samples of each solid
Answers
Answered by
DrBob222
1. Dissolve the S/NaNO3 mixture in water and filter. The S stays in the filter paper; evaporate the water to recover the NaNO3 salt.
2. Dissolve the S/NaNO3 mixture in CS2. Filter. The NaNO3 stays in the filter paper; evaporate the CS2 solvent to recover the S.
3. Dissolve the S/NaNO3 mixture in water. Centrifuge. The S will collect at the bottom of the centrifuge tube. Decant. Wash several times, decanting each to the aqueous solution. Evaporate the water to recover the NaNO3. Dissolve the S in CS2, transfer to a suitable container, evaporate the CS2 to recover the S solid.
2. Dissolve the S/NaNO3 mixture in CS2. Filter. The NaNO3 stays in the filter paper; evaporate the CS2 solvent to recover the S.
3. Dissolve the S/NaNO3 mixture in water. Centrifuge. The S will collect at the bottom of the centrifuge tube. Decant. Wash several times, decanting each to the aqueous solution. Evaporate the water to recover the NaNO3. Dissolve the S in CS2, transfer to a suitable container, evaporate the CS2 to recover the S solid.
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