Problem: You measure two different pressures of the sealed vial containing air and ethanol at two different temperatures; 890.27 mmHg at 27°C and 908.53 mmHg at 40°C. From earlier measurements you found that the pressure of air at 27°C is 760.05 mmHg. What is the vapor pressure?At 27°C: 130.22 mmHgAt 40°C: _____ mmHg

FREE Expert Solution

(1) Calculate the pressure at 40°C using chemistry gas law. Recall that pressure and temperature are directly proportional

P1T1=P2T2760.05 mmHg27+273.15 K=P240+273.15 K

P2 = 792.96 mmHg

View Complete Written Solution
Problem Details

You measure two different pressures of the sealed vial containing air and ethanol at two different temperatures; 890.27 mmHg at 27°C and 908.53 mmHg at 40°C. From earlier measurements you found that the pressure of air at 27°C is 760.05 mmHg. What is the vapor pressure?

At 27°C: 130.22 mmHg

At 40°C: _____ mmHg

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemistry Gas Laws concept. If you need more Chemistry Gas Laws practice, you can also practice Chemistry Gas Laws practice problems.