Calculate the vapor pressure at 50°C of a coolant solution that is 51.0:49.0 ethylene glycol-to-water by volume. At 50.0°C, the density of water is 0.9880 g/mL, and its vapor pressure is 92 torr. The vapor pressure of ethylene glycol is less than 1 torr at 50.0°C.   Ions g/kg mM Na+ 10.781 480.57 K+ 0.399 10.46 Mg2+ 1.284 54.14 Ca2+ 0.4119 10.53 Cl- 19.353 559.40 SO42- 2.712 28.93 HCO3- 0.126 2.11 Total 35.067 n/a   The sodium  ion:         m The chloride ion:         m

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 12.94QE
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Calculate the vapor pressure at 50°C of a coolant solution that is 51.0:49.0 ethylene glycol-to-water by volume. At 50.0°C, the density of water is 0.9880 g/mL, and its vapor pressure is 92 torr. The vapor pressure of ethylene glycol is less than 1 torr at 50.0°C.

 

Ions g/kg mM
Na+ 10.781 480.57
K+ 0.399 10.46
Mg2+ 1.284 54.14
Ca2+ 0.4119 10.53
Cl- 19.353 559.40
SO42- 2.712 28.93
HCO3- 0.126 2.11
Total 35.067 n/a

 

The sodium  ion:         m

The chloride ion:         m

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