How can you say if a steam distillation is finished in the lab-Solutio.docx

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How can you say if a steam distillation is finished in the lab? Solution Collect some of the distillate, the stuff that comes over, in a small test tube. Examine the sample. If you see two layers, or the solution is cloudy, youâ€™re not done. Your product is still coming over. Keep distilling and keep adding hot water to generate more steam. If you donâ€™t see any layers, donâ€™t assume youâ€™re done. If the sample is slightly soluble in the water, the two layers or cloudiness might not show up. Add some salt to the solution youâ€™ve collected in the test tube, shake the tube to dissolve the salt, and if youâ€™re lucky, more of your product may be squeezed out of the aqueous layer, forming a separate layer. If that happens, keep steam distilling until the product does not come out when you treat a test solution with salt. .

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