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The number of N atoms in 681 g of C7H5N3O6 is x × 1021. The value of x is___________.

(NA = 6.02 × 1023 mol-1) (Nearest Integer)

0 3 Views | Posted 3 months ago
Asked by Shiksha User

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    Answered by

    Payal Gupta | Contributor-Level 10

    3 months ago

    Molar mass of C7H5N3O6 = 12 × 7 + 1 × 5 + 14 × 3 + 16 × 6 = 84 + 42 + 96 = 227 g/mol

    Number of moles = 6 8 1 2 2 7  = 3 mol

    ∴ number of N-atoms

    =3×6.02×1023×3=9×6.02×1023

    =5418×1021

    ∴x=5418 

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