1. A student has prepared the following compounds in the lab. He measured the melting point of each one of them and recorded it in the following table (as "observed melting point"). Find out the actual melting point for each compound and compare it with the observed melting point. State if the student's compound is pure or impure, and why? Compound Observed Actual melting point /°C Pure or impure? Reason melting point 1°C Benzoic acid 121-123 Salicylic acid 142-146 Acetaminophen 166-171 Biphenyl 70-74

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A: Answer

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Q: 1. What allows some organic compounds to be soluble in water?

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Q: Question 2

A: The unbalanced chemical equation is given by as follows:

Q: Question 2

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Q: Question 2

A: the balanced equation are as follows

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Q: Question 2

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Q: Question 2

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Q: Question 2

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A: This is a buffer solution so use buffer equation and get the answer