Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Hugo
Lv 5
Hugo asked in Science & MathematicsChemistry · 9 years ago

when a mass of hydrogen at 25°C has a pressure of 1.454 atmospheres, how many molecules of hydrogen are there?

1 Answer

Relevance
  • jacob s
    Lv 7
    9 years ago
    Favorite Answer

    PV=nRT

    At 25°C and 1 atm we have 22.4 Liter/mol

    So, at 1.454 atm we should have 32.56 L/mol

    Now 1.454 atm*32.56L=n*0.0821*298K

    n=1.94=moles

    1.94 moles H2(6.0221415 × 10^23 molecules/1 mole H2)=

    1.165 x 10^24 molecules

Still have questions? Get your answers by asking now.