4. Three molecules are shown below as their Lewis dot structures. The molecule with the highest boiling point is incorrectly labeled. What is the correct molecule with the highest boiling point? In a short paragraph explain the error that was made when C was identified as the highest boiling point.
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- Brian forgot to close the end of his capillary tube when he was conducting the boiling point determination experiment. He then decided to use a lighter to close the end, making sure that it does not touch the oil. Which of the following statements is true? a. Brian did a great job in making sure that the experiment worked. It is important to close the end of the capillary tube for accurate determination of the lower limit of the sample's boiling point. b. What Brian did is dangerous as oil is a flammable substance. He should have stopped the experiment then closed the tube first before continuing. c. It is not important to close the end of the tube. He could have just proceeded with the experiment or covered the end of the tube with tape since prolonged air contact might contaminate the sample. d. Brian could have covered the end of the capillary tube with his finger, since it is not as dangerous as using the lighter on a flammable substance such as oil.…1. Name two different industrial/commercial applications for benzoic acid. 5. Why is it important that melting points are recording using a slow heating rate 6. Benzoic acid is a solid at room temperature. Suggest and describe two different types of intermolecular force that are responsible for its observed melting point.True or False. It is very important to regulate the temperature of the heating mantle so that the distillation occurs at a rate of about 1 drop per 2 seconds. Explain why?
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- what is denser water or chloroform? why? elaborateWhy would industry prefer to purify solids by sublimation or zone refining rather than recrystallization? (Hint: is there anything wasteful about recrystallization)Discuss how relative humidity in a cold storage room can influence the vaporpressure deficit.
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