Chemistry

posted by .

If the initial pressures of the H2 and N2 in the flasks in the figure below were instead 350. torr and 160. torr, respectively, what would be the final pressure after the stopcock is opened?
Left side of stopcock= 2.00L H2
Right side of stopcock= 1.00L N2

  • Chemistry -

    I would use PV = nRT and solve for n for H2 flask. So the same for N2 flask. You have no T listed but you can make up a T (and keep it the same throughout). Then add n1 + n2 and use PV = nRT again with total mols and total volume, solve for P.

    A shorter route is to use
    P1V1 = P2V2 and convert pH2 from 2L @ 350 mm to 3L at ? P.
    Do the same for converting pN2 from 1L @ 160 mm to 3L @ ?P. Then add pH2 + pN2 = Ptotal. You will get the same answer either way.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    A 260-ml flask contains pure helium at a pressure of 756torr . A second flask with a volume of 470ml contains pure argon at a pressure of 717 torr . A)If the two flasks are connected through a stopcock and the stopcock is opened, what …
  2. chemistry

    A 265- mL flask contains pure helium at a pressure of 747 torr. A second flask with a volume of 485 mL contains pure argon at a pressure of 721 torr .If the two flasks are connected through a stopcock and the stopcock is opened, what …
  3. Chemistry

    Consider the flasks diagrammed below. What is the total pressure in torr after the stopcock between the two flasks is opened?
  4. chemistry

    "A 280ml flask contains pure helium at a pressure of 754 torr . A second flask with a volume of 475ml contains pure argon at a pressure of 732 torr . If the two flasks are connected through a stopcock and the stopcock is opened, what …
  5. chemistry 105

    A 260-mL flask contains pure helium at a pressure of 743 torr. A second flask with a volume of 480 mL contains pure argon at a pressure of 715 torr. If the two flasks are connected through a stopcock and the stopcock is opened, what …
  6. Thermodynamics

    Consider a system consisting of two glass bulbs, each with volume V, and each containing n moles of gas. Bulb A contains nA moles of A and bulb B contains nB moles of B (a different gas), nA = nB. The bulbs are connected by a closed …
  7. chemistry

    at an equilibrium mixture of PCl5, PCl3, and Cl2 has partial pressures of 217.0 Torr, 13.2 Torr and 13.2 Torr respectively. a quantity of Cl2 is injected into the mixture, and the total pressure jumps to 263.0 Torr (at the moment of …
  8. Chemistry

    Consider the following reaction: 4NH3(g) +5O2(g) -->4NO(g) +6H2O(g) Suppose we have two flasks connected by a stopcock. In one flask, we have 2.0L of NH3(g) at a pressure of .500 atm. In the other flask, we have 1.00L of O2(g) at …
  9. Chemistry

    Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the gases are allowed to mix. What would be the final pressure in torr after mixing, if initially H2 is in the first flask (Volume = 4.000 …
  10. Chemistry

    Consider two flasks. What are the final partial pressure of H2 and N2 after the stopcock between the two flasks is opened?

More Similar Questions