Question
Pure cyclohexane has a freezing point of 6.50 C and a molalfreezing point constant (kf) of 20.2 C/m. You dissolve 1.99 g ofan unknown solid
Pure cyclohexane has a freezing point of 6.50 °C and a molalfreezing point constant (kf) of 20.2 °C/m. You dissolve 1.99 g ofan unknown solid into 50.0 g of cyclohexane. You determine that thefreezing point of the solution is -1.80 °C.
a. What is the freezing point depression (?Tf)?
b. What is the molality of the solution?
c. What is the molar mass of the unknown solute?
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Physics
Authors: David Young, Shane Stadler
10th edition
1118486897, 978-1118836873, 1118836871, 978-1118899205, 1118899202, 978-1118486894
