Question #89840
Phenylcarbinol is used in nasal sprays as a preservative. A solution of 0.52 g of the compound in 25.0 g of water has a melting point of-0.36 °C. What is the molar mass of phenylcarbinol? (Kp for water is -1.858°C/m.)
1
Expert's answer
2019-05-23T08:00:18-0400

Kp (O)= -1.858 /m

Mr (phenilcarbinol) =?

Solution: According to cryoscopy law

.t= Kp=

From which Mr = = = 107.35

Answer : Mr (phenilcarbinol) =107.35


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