Ask questions and get helpful answers.

If a nitrogen gas sample occupies a volume of 2.55 L at 22.0 degrees Celsius and 0.860 atm, what is the mass of the N2 gas?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
2 answers
  1. Use PV = nRT and solve for n = number of moles.
    Then n = grams/molar mass and solve for grams. You know the molar mass N2 = about 28

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. PV=nRT
    n=PV/RT
    n=0.860*2.55/0.08206*(22.0+273.15)
    n=2.19/24.2
    n=0.0906 mole

    0.0906molN*28.00g N/1 mole N
    N=2.54g of N2

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.