Vapor Pressure: Interpretation of Table H Using the vapor pressure curves in Regents Table H, answer the following questions:
1. What is the vapor pressure of ethanol at 50 °C.
2. How do the vapor pressure of the other substances compare to the vapor pressure
of
ethanol at 50 °C?
3. At what temperature does propanone have a vapor pressure of 180 kPa?
4. Which substance has a vapor pressure of 110 kPa at 120 °C?.
5. In order for water to boil at 70 °C, what must the pressure be?
6. What is the boiling point of ethanoic acid at 60 kPa?
7. Which substance has the highest normal boiling point?
8. Which substance has the lowest normal boiling point?
9. Explain how you arrived at your answer for # 8?
Estimate the following (from Regents Table H).
10. The vapor pressure of ethanoic acid at 80°C
11. The vapor pressure of water at 40°C.

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Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml