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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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
Transcribed Image Text:To determine the molar mass of an unknown, a student dissolved 0.201 gr of the unknown in 40 gr
cyclohexane. If the freezing point decreases by 0.7°C, which of the following could be the unknown?
(Note: K₁ cyclohexane = 20.5 Kg.°C/mol)
1,4_dichlorobenzene (Mm = 147 g/mol)
Naphthalene (Mm = 128.17 g/mol)
Biphenyl (Mm= 154.21 g/mol)
Phenol (Mm = 94.11 g/mol)
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