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21 November, 04:29

What mass is 2.4E25 molecules of NaHCO3?

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  1. 21 November, 04:44
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    Mole = no. Molecules/6.02*10^23

    Mole = (2.4*10^25) / (6.02*10^23)

    Mole = 39.87mole

    Molar mass of NaHCO3 is

    = 23 + 1 + 12 + 3 (16)

    = 84g/mol

    Mole = mass/molar mass

    Mass = Mole * molar mass

    Mass = 39.87 * 84

    Mass = 3348.84g
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