A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared with 15.79 g of urea ((NH2),CO dissolved in it, the sample is found to have a melting point of – 8.5 °C instead. Calculate the molal freezing point depression constant K, of X.
A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared with 15.79 g of urea ((NH2),CO dissolved in it, the sample is found to have a melting point of – 8.5 °C instead. Calculate the molal freezing point depression constant K, of X.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.99QE
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![A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared with 15.79 g of urea
((NH2),CO) dissolved in it, the sample is found to have a melting point of – 8.5 °C instead. Calculate the molal freezing
point depression constant K, of X.
Be sure your answer has the correct number of significant digits.
- 1
I°C- mol-kg](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F48bba008-5eee-4157-b489-6f90113c3fbd%2F58a48279-e017-4dd8-b0d2-5e8d92ac092e%2F2c1f5t8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A certain substance X melts at a temperature of -5.5 °C. But if a 600. g sample of X is prepared with 15.79 g of urea
((NH2),CO) dissolved in it, the sample is found to have a melting point of – 8.5 °C instead. Calculate the molal freezing
point depression constant K, of X.
Be sure your answer has the correct number of significant digits.
- 1
I°C- mol-kg
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