Homework Help: Chemistry

Posted by leo on Saturday, October 20, 2007 at 9:33pm.

A closed container is filled with oxygen. The pressure in the container is 435kPa . What is the pressure in millimeters of mercury?

(i know that 1atm=760mm Hg=101,325 Pa)

How do I use this to solve for the question? so: 435kPa*101,325=44,076,375Pa, & O2 = 32g/mol & you must have to use 760mmHg in there somehow, but then what.
The text really doesn't discuss this much, it only shows one sample prob which only gives a psi to convert to mmHg.

& how do you solve for pressure (in atmospheres) when given a msmt in "___cm's" -in a manometer- & given the atmospheric pressure in __atm?

Chemistry - Count Iblis, Saturday, October 20, 2007 at 9:47pm
You can use the equation:

760mm Hg=101,325 Pa

You simply write it as:

Pa = 760mm Hg/(101,325)

You then substitute this in the expression for pressure in the container:

435kPa = 435k*760mm Hg/(101,325) =

435*1000*760mm Hg/101,325 = 3362.8mm Hg
- Chemistry - leo, Saturday, October 20, 2007 at 9:59pm
  so g/mol of oxygen has nothing to do with solving??
  - Chemistry - DrBob222, Saturday, October 20, 2007 at 10:17pm
    Right. The 32 g/mol has nothing to do with it. Pressure is pressure. It would be the same for any gas. Also, I think there is a typo in the number. I think it should be 3262.8 but we are allowed only 3 significant figures.
    - Chemistry - leo, Saturday, October 20, 2007 at 10:48pm
      I had picked up on that, thank you. I had that answer before but thought it was wrong.

Answer this Question

Related Questions

college chemistry - A closed container is filled with oxygen. The pressure in ...
Chemistry - The pressure inside a hydrogen-filled container was 2.10 at 21 . ...
chemistry - The pressure inside a hydrogen-filled container was 2.10 at 21 . ...
chemistry - The pressure inside a hydrogen-filled container was 2.10 at 21 . ...
chemistry - A 2.34L container of H2(g)at 752mmHg and 24 degrees is connected to ...
chemistry - The pressure inside a hydrogen-filled container was 2.10 atm at 21 C...
physics - sealed metal container can withstand a pressure difference of 0.630 . ...
Chemistry - Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown ...
chemistry - Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown ...
Quemistry - L has twice the volume of container J. Container J is at a ...

For Further Reading

First Name:
School Subject:
Answer: