1.Assume that the measured freezing point of pure cyclohexane using your thermometer was 6.0 °C. A 0.50 molal solution of benzil (molar mass = 154.2 g/mol) lowers the freezing point of cyclohexane to -3.8 °C. What is the value of Kf for cyclohexane using the above data? 2. If 0.300 g of one of the unknown solids was dissolved in 25.0 mL cyclohexane (d = 0.780 g/mL), using the Kf from the previous problem, what is the molar mass of the unknown if the new freezing point is
1.Assume that the measured freezing point of pure cyclohexane using your thermometer was 6.0 °C. A 0.50 molal solution of benzil (molar mass = 154.2 g/mol) lowers the freezing point of cyclohexane to -3.8 °C. What is the value of Kf for cyclohexane using the above data? 2. If 0.300 g of one of the unknown solids was dissolved in 25.0 mL cyclohexane (d = 0.780 g/mL), using the Kf from the previous problem, what is the molar mass of the unknown if the new freezing point is
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1.Assume that the measured freezing point of pure cyclohexane using your thermometer was 6.0 °C. A 0.50 molal solution of benzil (molar mass = 154.2 g/mol) lowers the freezing point of cyclohexane to -3.8 °C. What is the value of Kf for cyclohexane using the above data?
2. If 0.300 g of one of the unknown solids was dissolved in 25.0 mL cyclohexane (d = 0.780 g/mL), using the Kf from the previous problem, what is the molar mass of the unknown if the new freezing point is 4.3 °C?
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