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23 April, 15:17

What is the molality of a solution that contains. 500 mol hc2h3o2 and 0.125 kg h2o?

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  1. 23 April, 17:01
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    Molality is defined as the number of moles of solute in 1 kg of solvent

    in this case solvent is H₂O and solute is HC₂H₃O₂

    number of moles of solute - 0.500 mol

    mass of solvent - 0.125 kg

    since we need to know how many moles in 1 kg solvent

    if 0.125 kg contains - 0.500 mol

    then 1 kg contains - 0.500 mol / 0.125 kg = 4 mol

    therefore molality of solution is 4 mol/kg
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