Question

Pure cyclohexane, C_6 H_12, has a freezing point of 6.53 ?. Its freezing point depression constant is: K_f=20.0 ?/m. A solution was made by taking 11.40g of an unknown nonelectrolyte and dissolving it in 150.0g of cyclohexane. The measured freezing point of the solution was 0.78?. Calculate the molar mass of the unknown nonelectrolyte.

Name: pure cyclohexane c6 h12 has a freezing point of 653 c its freezing point depression constant is kf200 cm a solution was made by taking 1140g of an unknown nonelectrolyte and dissolving it in 1500g
Uploaded: 2021-10-11T23:30:07-08:00
Duration: 6 min 22 s
Channel: Jennifer Hudspeth
Description: pure cyclohexane c6 h12 has a freezing point of 653 c its freezing point depression constant is kf200 cm a solution was made by taking 1140g of an unknown nonelectrolyte and dissolving it in 1500g

          Pure cyclohexane, C_6 H_12, has a freezing point of 6.53 ?. Its freezing point depression constant is: K_f=20.0 ?/m. A solution was made by taking 11.40g of an unknown nonelectrolyte and dissolving it in 150.0g of cyclohexane. The measured freezing point of the solution was 0.78?. Calculate the molar mass of the unknown nonelectrolyte.

Added by Daniel J.

Chemistry Principles and Practice

Daniel L. Reger, Scott R. Goode, David… 3rd Edition

Chapter 12

Instant Answer

Solved by Expert Jennifer Hudspeth

10/11/2021

Step 1

53°C - 0.78°C ΔTf = 5.75°C Show more…

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Pure cyclohexane, C_6 H_12, has a freezing point of 6.53 ?. Its freezing point depression constant is: K_f=20.0 ?/m. A solution was made by taking 11.40g of an unknown nonelectrolyte and dissolving it in 150.0g of cyclohexane. The measured freezing point of the solution was 0.78?. Calculate the molar mass of the unknown nonelectrolyte.