An unknown compound X is one of the four compounds listed in Table below. A mixt

Question

An unknown compound X is one of the four compounds listed in Table below. A mixture of X with benzoic acid melts at 89degreeC, a mixture of X with phenyl succinct melts at 120degreeC, and a mixture of X with m-aminophenol melts at 102degreeC. Give the identity of X and explain your reasoning. PART E. SN Reaction 13. Draw the flowchart for the SN reaction with sodium saccharin. Explain each step. Write chemical equations. PART F. TLC: Consider the following TLC plate, which was developed in methylene chloride 14. The R_f of Compound B is: a) 3.5 b) 1.0 c) 0.8 d) 0.5 e) 8.0 15. The R_f value on a TLC is getting higher, if the cluent is changed to a) more polar one b) less polar one c) lower temperature one d) higher temperature one 16. A fresh TLC plate is spotted with compounds A, B, and C, but this time the solvent is hexane. How will this affect the R_r of compound A? a) the R_f of A in the new solvent will be the same as in methylene chloride b) the R_f of A in the new solvent will be greater than that in methylene chloride c) the R_f of A in the new solvent will be less than that in methylene chloride d) the R_f of A in the new solvent will be changed based on

Explanation / Answer

12)

x + phenyl succinate = 120 oC
x + benzoic acid = 89 oC
x + m-aminophenol = 102oC
when a compound melts, it melts at a distinct temperature. if x were mixed with any of these compounds, x would melt at its melting point leaving the other compounds solid until they reach their melting points. or, in the case with benzoic acid, the compound would melt at 88 and the benzoic acid wouldn't melt until the temperature reached 121ºC.
therefore, x = o-toluic acid

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