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    Cash Assist Loan App Customer . Care Helpline Number 6299243556=6299243556 Call Now
    jshhd9708 18th Aug, 2023
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    calculate the molar diameter of he from its van der Waals constant b=81 mL mol
    Manasi Kadam 30th Sep, 2020

    Hi,

    Since it is given that van der waal's constant

    b= 81 ml/ mol

    And we have a formula that goes like

    b=4 × volume of 1 mol molecule

    b=4Na (4/3πr^3)

    Therefore,

    r= (3b/16Naπ)^1/3

    r=(243/302.59×10^23)^1/3

    r~(0.80×10^-23)^1/3

    r~ 4.3×10^-7 cm

    D= 8.6×10^-7 cm (approx)


    Hope it helps!


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