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4- Two organic solvents (A and B) form an ideal solution when they mixed at 25 °C. The vapor pressures of A and B solvents at 25 °C are 500 and 180 mmHg, respectively. By mixing 30 mL of A (d-0.64 g/mL) with 48 mL B (d-0.67 g/mL), an ideal solution is prepared. a- What is the vapor pressure of resulting ideal solution? b- What is the composition by mole fraction of A in the vapor that is in equilibrium with this solution? (Mw of A= 72.15 g/mol: Mw of B=86.17 g/mol)

4- Two organic solvents (A and B) form an ideal solution when they mixed at 25 °C. The vapor pressures of A and B solvents at 25 °C are 500 and 180 mmHg, respectively. By mixing 30 mL of A (d-0.64 g/mL) with 48 mL B (d-0.67 g/mL), an ideal solution is prepared. a- What is the vapor pressure of resulting ideal solution? b- What is the composition by mole fraction of A in the vapor that is in equilibrium with this solution? (Mw of A= 72.15 g/mol: Mw of B=86.17 g/mol)

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question 4
Paragraf Stiller 4- Two organic solvents (A and B) form an ideal solution when they mixed at 25 °C. The vapor pressures of A and B solvents at 25 °C are 500 and 180 mmHg, respectively. By mixing 30 mL of A (d-0.64 g/mL) with 48 mL B (d=0.67 g/mL), an ideal solution is prepared. a- What is the vapor pressure of resulting ideal solution? b- What is the composition by mole fraction of A in the vapor that is in equilibrium with this solution? (Mw of A= 72.15 g/mol; Mw of B= 86.17 g/mol) 5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C Additionally, the elemental composition of the substance is identified and found to be 40.0% C6 704 H ad 53.3 0,0hma: Find themolecular formula of this unknown white powvder
Transcribed Image Text:Paragraf Stiller 4- Two organic solvents (A and B) form an ideal solution when they mixed at 25 °C. The vapor pressures of A and B solvents at 25 °C are 500 and 180 mmHg, respectively. By mixing 30 mL of A (d-0.64 g/mL) with 48 mL B (d=0.67 g/mL), an ideal solution is prepared. a- What is the vapor pressure of resulting ideal solution? b- What is the composition by mole fraction of A in the vapor that is in equilibrium with this solution? (Mw of A= 72.15 g/mol; Mw of B= 86.17 g/mol) 5- A chemist is given a nonelectrolyte white powder for analysis. 38.7 g of this substance is dissolved in 100.0 g of water. It is determined that the resulting solution freezes at -4.0°C Additionally, the elemental composition of the substance is identified and found to be 40.0% C6 704 H ad 53.3 0,0hma: Find themolecular formula of this unknown white powvder
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