A solution is prepared by mixing 3.50 mL dichloromethane (CH2Cl2,84.93 g/mol,1.33 g/mL) with 3.50 mL dibromomethane (CH2Br2,173.8 g/mol,2.48 g/mL) .By what factor is the vapor phase enriched in CH2Cl2 at 25 C? 
A) 35.3
B) 10.8
C) 2.06
D) 1.77
E) 11.7
Correct Answer:
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