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    Express 0.100moldm-3 in %w/v (molecular weight = 300gmol-1) Does anyone know how to approach this question ? Thank you
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    (Original post by j582)
    Express 0.100moldm-3 in %w/v (molecular weight = 300gmol-1) Does anyone know how to approach this question ? Thank you
    change mol into mass, working with 1 litre of solution to simplify things (1000ml).

    Then divide the mass by 10 to get mass per 100 ml = % (percent means per 100)
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    (Original post by charco)
    change mol into mass, working with 1 litre of solution to simplify things (1000ml).

    Then divide the mass by 10 to get mass per 100 ml = % (percent means per 100)
    Is the answer 3%?
 
 
 
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