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The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and 53.3% O. A solution of 0.673 g of the solid in 28.1 g of the solvent diphenyl gave a freezing point depression of 1.6 Celsius. Calculate the molecular formula of the solid. (K for diphenyl is 8.00°C/m.) C4H8O4 (Your correct answer) CH₂O C3H405 C3H603 C₂H4O2

The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and 53.3% O. A solution of 0.673 g of the solid in 28.1 g of the solvent diphenyl gave a freezing point depression of 1.6 Celsius. Calculate the molecular formula of the solid. (K for diphenyl is 8.00°C/m.) C4H8O4 (Your correct answer) CH₂O C3H405 C3H603 C₂H4O2

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
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(Correct!) The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and 53.3% O. A solution of 0.673 g of the solid in 28.1 g of the solvent diphenyl gave a freezing point depression of 1.6 Celsius. Calculate the molecular formula of the solid. (Kf for diphenyl is 8.00°C/m.) C4H8O4 (Your correct answer) CH₂0 C3H405 C3H603 C₂H4O2
Transcribed Image Text:(Correct!) The mass percent composition of an organic compound showed that it contained 40.0% C, 6.7% H and 53.3% O. A solution of 0.673 g of the solid in 28.1 g of the solvent diphenyl gave a freezing point depression of 1.6 Celsius. Calculate the molecular formula of the solid. (Kf for diphenyl is 8.00°C/m.) C4H8O4 (Your correct answer) CH₂0 C3H405 C3H603 C₂H4O2
Expert Solution
Step 1: Determine the molecular formula of the solid use given information:

Given,

percentage by mass of atoms in the compound:    40.0% C, 6.7% H and 53.3 % O

Mass of compound = 0.673 g

Mass of diphenyl solvent = 28.1 g

The freezing point depression = 1.6 0C

kf of diphenyl solvent = 8.00 0C/m

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