Close Menu
    Facebook X (Twitter) Instagram
    ScienceMotive
    • Class 9
      • Matter in Our Surroundings
      • Is Matter Around Us Pure
      • Atoms and Molecules
      • Structure of the Atom
      • The Fundamental Unit of Life
    • Class 10
      • Chapter 1: Chemical Reactions and Equations
      • Chapter 2: Acids, Bases & Salts
      • Chapter 3: Metals & Non-Metals
      • Chapter 4: Carbon and its Compounds
      • Chapter 5: Periodic Classification of Elements
      • Chapter 6: Life Processes
      • Chapter 7: Control and Coordination
      • Chapter 8: How Do Organisms Reproduce?
      • Chapter 9: Heredity and Evolution
      • Chapter 10: Light – Reflection and Refraction
      • Chapter 11: Human Eye and the Colourful World
      • Chapter 12: Electricity
      • Chapter 13: Magnetic Effects of Electric Current
      • Chapter 14: Sources of Energy
      • Chapter 15: Our Environment
      • Chapter 16: Management of Natural Resources
    • Class 11
      • Chemisrty 11
        • Chapter – 1 Some Basic Concepts of Chemistry
        • Chapter – 2 Structure Of Atom
        • Chapter – 3 Classification of Elements and Periodicity in Properties
        • Chapter – 4 Chemical Bonding and Molecular Structure
        • Chapter – 5 States of Matter
        • Chapter – 6 Thermodynamics
        • Chapter – 7 Equilibrium
        • Chapter – 8 Redox Reaction
        • Chapter – 10 s-Block Elements
        • Chapter – 13 Hydrocarbons
    • Class 12
      • Chemistry 12
        • The Solid State
        • Solutions
        • Electrochemistry
        • Chemical Kinetics
        • Surface Chemistry
        • p – Block Elements
        • d & f Block Elements
        • Coordination Compounds
        • Haloalkanes and Haloarenes
        • Alcohols, Phenols and Ethers
        • Aldehydes, Ketones and Carboxylic Acids
        • Amines
        • Biomolecules
        • Polymers
        • Chemistry in Everyday Life
    • Practice Questions
      • +1
      • +2
    • Test Series
      • Class 9 Test Series
      • Class 10 Test Series
      • Class 11 Test Series
      • Class 12 Test Series
    • World
      • Current Affairs
      • General Knowledge
    ScienceMotive
    Home » Class 11 Chemistry Chapter 2 Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons.

    Class 11 Chemistry Chapter 2 Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons.

    Dr. Vikas JasrotiaBy Dr. Vikas JasrotiaSeptember 12, 2023No Comments
    Share
    Facebook WhatsApp Telegram Twitter Email

    Class 11 Chemistry Chapter 2 Question 2.1

    Question 2.1: (i) Calculate the number of electrons which will together weigh one gram.
    (ii) Calculate the mass and charge of one mole of electrons.

    Ans 2.1: (i) Mass of one electron = 9.1 × 10–31 kg
    Number of electrons that weigh 9.1 × 10–31 kg = 1
    Number of electrons that will weigh 1 g i.e 1 × 10–3 kg = 1 × 10–3 kg/ 9.1 × 10–31 kg
    = 0.1098 × 10–3 + 31
    = 0.1098 × 1028 = 1.098 × 1027

    (ii) Mass of one electron = 9.1 × 10–31 kg
    Mass of one mole of electron = (6.022 × 1023) × (9.1 ×10–31 kg)
    = 5.48 × 10–7 kg
    Charge on one electron = 1.6022 × 10–19 coulomb
    Charge on one mole of electron = (1.6022 × 10–19 C) (6.022 × 1023) = 9.65 × 104 C

    Class 11 Chemistry Chapter 2 Question 2.1

    Advertisement
    Class 11 Chemistry Chapter 2 Question 2.1: (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons.
    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Dr. Vikas Jasrotia
    • Website

    Related Posts

    Class 11 Chemistry Half Yearly Question Paper

    September 30, 2024

    Redox Reaction

    June 13, 2024

    Equilibrium Class 11

    June 12, 2024
    Leave A Reply Cancel Reply

    READ ALSO

    Gravitation Class 9 Notes

    December 5, 2024

    Class 11 Chemistry Half Yearly Question Paper

    September 30, 2024

    Solid State Chemistry Class 12 Notes PDF Download

    September 10, 2024

    Redox Reaction

    June 13, 2024
    Class 9

    Gravitation Class 9 Notes

    By Dr. Vikas JasrotiaDecember 5, 2024

    Gravitation Class 9 Notes Gravitation Class 9 Notes Gravitation According to Newton, every object in…

    +1

    Class 11 Chemistry Half Yearly Question Paper

    By Dr. Vikas JasrotiaSeptember 30, 2024

    Class 11 Chemistry Half Yearly Question Paper Class 11 Chemistry Half Yearly Question Paper Time…

    +2

    Solid State Chemistry Class 12 Notes PDF Download

    By Dr. Vikas JasrotiaSeptember 10, 2024

    Solid State Chemistry Class 12 Notes PDF Download In our day-to-day life solids play…

    Advertisement
    Advertisement
    Facebook X (Twitter) Instagram Pinterest YouTube
    • Disclaimer
    • Contact Us
    • Privacy Policy 
    • Terms and Conditions
    © 2025 All Rights Reserved ScienceMotive.

    Type above and press Enter to search. Press Esc to cancel.