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41 What is the vapor pressure of propanone at 45°C?(1) 21 kPa (3) 70. kPa (2) 60. kPa (4) 79 kPa


NY Chemistry Regents Exam Jan 2023

41 What is the vapor pressure of propanone at 45°C? (1) 21 kPa

(2) 60. kPa

(3) 70. kPa

(4) 79 kPa


Solution: Table H on the Reference Table gives vapor pressure of different substances.

We need to find 45°C at the bottom and scroll up to propanone line. (3) 70. kPa is correct


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