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The freezing point of pure benzene was measured as 5.49 °C. The freezing point of a solution prepared by dissolving 5.782 g of an unknown substance in 100.2 g of benzene was found to be 3.48°C. Kf for benzene is 5.12 °C/m. Calculate the molecular weight of the unknown substance? How many grams of ammonium phosphate need to be added to 500 g of water so that the freezing point of the solution is lowered 8.3°C? 11ntion The

The freezing point of pure benzene was measured as 5.49 °C. The freezing point of a solution prepared by dissolving 5.782 g of an unknown substance in 100.2 g of benzene was found to be 3.48°C. Kf for benzene is 5.12 °C/m. Calculate the molecular weight of the unknown substance? How many grams of ammonium phosphate need to be added to 500 g of water so that the freezing point of the solution is lowered 8.3°C? 11ntion The

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The freezing point of pure benzene was measured as 5.49 °C. The freezing point of a Soludon prepared by dissolving 5.782 g of an unknown substance in 100.2 g of benzene was found to be 3.48°C. Kf for benzene is 5.12 °C/m. Calculate the molecular weight of the unknown substance? How many grams of ammonium phosphate need to be added to 500 g of water so that the freezing point of the solution is lowered 8.3°C? ntion The
Transcribed Image Text:The freezing point of pure benzene was measured as 5.49 °C. The freezing point of a Soludon prepared by dissolving 5.782 g of an unknown substance in 100.2 g of benzene was found to be 3.48°C. Kf for benzene is 5.12 °C/m. Calculate the molecular weight of the unknown substance? How many grams of ammonium phosphate need to be added to 500 g of water so that the freezing point of the solution is lowered 8.3°C? ntion The
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