2. (6 points) Seven years ago, about 28,000 liters of 4-methylcoheanemethanol (MCHM) was spiled into the Ek River near C

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2 6 Points Seven Years Ago About 28 000 Liters Of 4 Methylcoheanemethanol Mchm Was Spiled Into The Ek River Near C 1 (31.14 KiB) Viewed 34 times

2 6 Points Seven Years Ago About 28 000 Liters Of 4 Methylcoheanemethanol Mchm Was Spiled Into The Ek River Near C 2 (25.78 KiB) Viewed 34 times

2. (6 points) Seven years ago, about 28,000 liters of 4-methylcoheanemethanol (MCHM) was spiled into the Ek River near Charleston, WV. Little was known about the behavior or hazards of OH MCHM, and the result was uncertainty about steps required to safeguard public health One of the key unknowns about MCHM was its solubility, so to get a roughestimate of its solubility, you compare it to aqueous solubility data for some structurally similar compounds (2a). Details known about MCHM include its molecular weight (M-128.2 g mot), meting point (T.--22"C)and boiling point (T.-202°C). M compound Is morto ToC) 25CM cyclohexanol (CH 1002 25.4 160.8 0.43 4-methylcyclohexanol (MC) 1142 172.0 0.13 cyclohenmethanol (CHM 1142 183 0.045 dioheandmethanol (OOM 1442 346 286 0.030 1-hexanel 1022 446 1596 0.0060 24-dimethylcyclohexanemethanol (OMCM 1422 8 204 0.0055 sopropylcyclohexamethanol (ICM 1563 224 0.0017 2a. (3 points come up with your rough estimate of the solubility of MOHM for 25*Cunit of Me one significant figured by ranking it among the compounds in the table above. Justify your estimate with comparisons to the structures and properties of the compounds in the table. Note: there's no malolation and to certain correct answer to this question 2b. (2 points) Using the aqueous solubility estimate above, calculate the activity coefficient or MCHM at 25°C

2b. (2 points) Using the aqueous solubility estimate above, calculate the activity coefficient of MCHM at 25°C. 2c. (1 point) Which one of the following graphs shows what you should expect for the relationship between solubility and temperature for MCHM at 25°C? Circle your choice and explain in 50 words or fewer. CM -25 40 45 - C.MI :55 30 65 0.0032 0.001 000 0.0011 00035 1/T (1/1 0.0014 0.003 0.0038 1/T (1/6) 0.001 0.00 0.0036 0.000 1/11/