Posted by **Matt** on Sunday, December 2, 2007 at 3:59pm.

A 1.00 L flask containing 450 torr of H2 is connected to and mixed with a second flask with a volume of 0.500 L containing 250 torr N2. What is the final pressure of the resulting mixed gas system?

a) 250 torr

b)383 torr

c) 450 torr

d) 575 torr

e) it cannot be determined

- chem -
**DrBob222**, Sunday, December 2, 2007 at 4:46pm
Use PV = nRT

Calculate n for each container, add the number of mols to get the sum, plug that back into PV = nRT and solve for pressure. You don't have a T listed but I used 273. Actually, I think you may use any T you wish as long as you keep it constant throughout. I get one of the answers. (Hint: you KNOW it isn't 250 and you KNOW it isn't 450).

## Answer this Question

## Related Questions

- chemistry - A 265- mL flask contains pure helium at a pressure of 747 torr. A ...
- chemistry 105 - A 260-mL flask contains pure helium at a pressure of 743 torr. A...
- chemistry - 1 L FLASK CONTAINS NITROGEN ALONG WITH A DROP OR TWO OF WATER AT 40C...
- chemistry - 1 L FLASK CONTAINS NITROGEN ALONG WITH A DROP OR TWO OF WATER AT 40C...
- chemistry - "A 280ml flask contains pure helium at a pressure of 754 torr . A ...
- Chem - 0.600 L of Ar at 1.20atm and 227C is mixed with 0.200 L of O2 at 501 torr...
- Chemistry - a 265 ml flask contains pure helium at a pressure of 756 torr. A ...
- Chem - A flask of unknown volume was filled with air at a pressure of 389.0 kPa...
- chemistry - A chemist weighed out 5.31 g of a mixture containing unknown amounts...
- Science - A chemist weighed out 5.16 g of a mixture containing unknown amunts of...

More Related Questions