If the liquid being distilled contains dissolved magnesium chloride, where will it be found after distillation is completed?
Correct answer: D. In the heated flask
- A. Around the thermometer
- B. In the condenser
- C. In the circulating water
- D. In the heated flask
Explanation
Distillation is used to separate a volatile liquid (like water) from a non-volatile solid (like magnesium chloride). Think of it as a "purification" step. Because the salt is held together by very strong ionic bonds, it requires thousands of degrees to turn into a gas. Since we only heat the flask to the boiling point of water, the water "escapes" as steam while the salt is "trapped" in the boiling flask. By the end of the experiment, all the water will be in the receiving beaker, and all the magnesium chloride will be left behind as a dry residue in the original flask.
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