What is the main concern with trying to distill azeotropic mixtures? Options:   Specialized equipment is required, making separation expensive   The components become explosive at high temperature, making separation unsafe   The mixture will distill at a single temperature with a constant composition, making separation impossible   There are no major concerns with distilling azeotropic mixtures   The boiling points of the components are too similar, making separation impractical

The melting point (mp) range of reference compound A is 320-340°C. The mp range of a 1:1 mixture of a sample of A with a sample of unknown compound B is found to be 140-300°C. Do the samples consist of identical compounds? A)Yes, because the mp of the mixture is lower than the mp of pure A. B) Not enough information is given to answer the question C) Yes, because they melt over a broad range. D) No, because the mp of the mixture is lower than the melting point of pure A.

Which of the following is/are TRUE about simple distillation technique? a. It is used to separate thermally labile components of a liquid mixture. b. It is used to separate components of a liquid mixture with high differences in boiling points. c. It is used to separate components of a liquid mixture wherein the mixture boils at a temperature lower than the boiling points of the components. d. All of the above.

Your employer hands you a heterogeneous mixture and asks you to isolate all of thehexane that you can from it. After some analysis, you determine that the mixture contains toluene, hexane,benzoic acid, water, sodium chloride, and sand. Explain how you would isolate pure hexane from thismixture. Remember that you can use techniques such as filtration, extractions, and acid/base chemistrythat we learned earlier in this course in addition to distillation. You may need to look up solubilities and/orboiling points online to solve this problem. You only need to isolate the hexane?