Homework Help: chemistry

Posted by JS on Tuesday, November 8, 2011 at 12:11am.

A 5 mL sample of an unknown liquid is placed into a 250 mL flask that has had all of the air removed. The pressure measured in the flask is found to be 39.9kPa. In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same temperature. What will the pressure measure (in kPa) in the second trial?

I did: (39.9kPa/5mL) * 214mL = 1707.72kPa
Is this correct?

chemistry - DrBob222, Tuesday, November 8, 2011 at 12:34am
In the first trial, was at least a drop of the liquid present when P was 39.9 kPa? If so then that is the vapor pressure of the liquid at that temperature and the pressure in the second trial will be 39.9 kPa.
chemistry - JS, Tuesday, November 8, 2011 at 12:45am
Thank you. I just asked my tutor online for help, so I do not need any help anymore. Thank you anyways! :)

Answer this Question

Related Questions

Chemistry. please help - A 0.12 g sample of unknown was placed in a flask and ...
chemistry - A 0.5215 gram sample of CaCO3 is dissolved in 12M HCl and the ...
chemistry - 1 ) A sample of vapor occupies a volume of 125 ml at 100 celcius ...
Chemistry - A 16.48 g sample of potassium permanganate is dissolved in a 250.0 ...
Chemistry - A stoppered flask at 25 C contains 250 mL water, 200 mL octanol, and...
chemistry - Mass of Aspirin tablet: 0.357 g 10 mL of 1 M NaOH was added to the ...
chemistry - Transfer the tablet to a clean 125-mL Erlenmeyer flask. Add 10-mL of...
chemistry - a sample of vapor weighing 0.745 g filled a 250 ml flask when placed...
chemistry - a sample of vapor weighing 0.745 g filled a 250 ml flask when placed...
College Chemistry - A 32.85-{\rm g} sample of a solid is placed in a flask. ...

For Further Reading

First Name:
School Subject:
Answer: