ChemistryThe elements ‘A’ and ‘B’ combine together to give two compounds A 2 B 3 and A B 2 . The weight of 0.2 mole of A 2 B 3 is 26g. The weight of 0.3 mole of A B 2 is 24g Then the atomic weights of A and B respectively

The elements ‘A’ and ‘B’ combine together to give two compounds A2B3 and AB2. The weight of 0.2 mole of A2B3 is 26g. The weight of 0.3 mole of AB2 is 24g Then the atomic weights of A and B respectively 

  1. A
    15, 20
  2. B
    20, 25
  3. C
    20, 30
  4. D
    25, 30

    Fill Out the Form for Expert Academic Guidance!l



    +91



    Live ClassesBooksTest SeriesSelf Learning



    Verify OTP Code (required)

    I agree to the terms and conditions and privacy policy.

    Solution:

    Given,

    The Weight of 0.2 mole of of A2B3 is 26 g

    The weight of 0.3 mole of AB2 is 24g

    Atomic weight of A and B = ?

    Weight of 0.2 mole of A2B326 g

    Weight of one mole® ?

    1×260.2=130 g

    Weight of 0.3 mole of AB224 g

    Weight of 1 mole of A ®?

    1×240.3=80 g

    2A+3B130........1

    A+2B80..........2

    On Solving:  

    2A+4B160

    2A+3B130

    A+2B=80

    A+2(30)=80

    A=20; B=30.

     

    Chat on WhatsApp Call Infinity Learn

      Talk to our academic expert!



      +91


      Live ClassesBooksTest SeriesSelf Learning




      Verify OTP Code (required)

      I agree to the terms and conditions and privacy policy.