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A solution is made by mixing 45.0 mL of ethanol, C̟H,0, and 55.0 mL of water. ASsuming ideal behavior, what is the vapor pressure of the solution at 20 °C? The relevant values at 20 °C are included in the table. Liquid Density (g/mL) Vapor Pressure, P° (Torr) ethanol 0.789 43.9 water 0.998 17.5 vapor pressure: To:

A solution is made by mixing 45.0 mL of ethanol, C̟H,0, and 55.0 mL of water. ASsuming ideal behavior, what is the vapor pressure of the solution at 20 °C? The relevant values at 20 °C are included in the table. Liquid Density (g/mL) Vapor Pressure, P° (Torr) ethanol 0.789 43.9 water 0.998 17.5 vapor pressure: To:

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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A solution is made by mixing 45.0 mL of ethanol, C,H,0, and 55.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C? The relevant values at 20 °C are included in the table. Liquid Density (g/mL) Vapor Pressure, P° (Torr) ethanol 0.789 43.9 water 0.998 17.5 vapor pressure: Torr
Transcribed Image Text:A solution is made by mixing 45.0 mL of ethanol, C,H,0, and 55.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C? The relevant values at 20 °C are included in the table. Liquid Density (g/mL) Vapor Pressure, P° (Torr) ethanol 0.789 43.9 water 0.998 17.5 vapor pressure: Torr
Expert Solution
Step 1

Volume of ethanol = 45 mL

Density of ethanol = 0.789 g/mL

    Mass of ethanol = Volume * Density

                              = 45 mL * 0.789 g/mL

                              = 35.505 g

  Moles of ethanol = Mass /Molar mass

                              = 35.505 g/46 g/mol

                              = 0.772 mol

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