1.

    A 20 L vessel contains 0.1 mole of O2O_2 at 300 K. O3O_3 is prepared in the vessel by subjecting O2O_2 to silent electric discharge till the volume is reduced to 15 L at 300K. What is the number of moles of O3O_3 formed?

    A

    0.05

    B

    0.025

    C

    0.075

    D

    0.01

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :4 mins
    🔄Ncert Concepts :Mole Concept, Avogadro's Law, Stoichiometry

    Related Questions

    1.

    The number of molecules present in 1 mL of gas or vapour at STP is:

    A

    Called Loschmidt’s number

    B

    Equal to 2.617imes1019permL2.617 imes {10^{19}}{\rm{per mL}}

    C

    Both (1) and (2)

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Loschmidt's number, Standard Temperature and Pressure (STP), Number of molecules in a gas

    2.

    The number of molecules present in 1 mL of gas or vapour at STP is:

    A

    6.02 x 10²³

    B

    2.68 x 10¹⁹

    C

    1.68 x 10²²

    D

    22.4 x 10²⁰

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Some Basic Concepts in Chemistry
    🎯Topic:Mole Concept
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Loschmidt's number, STP conditions, number of molecules in a gas

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