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9 December, 17:55

What is the concentration in mass percent of a solution prepared from 50.0g nacl and 150.0g of water?

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  1. 9 December, 18:22
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    M (NaCl) = 50.0 g

    m (H₂O) = 150.0 g

    m (solution) = m (NaCl) + m (H₂O)

    w (NaCl) = 100m (NaCl) / m (solution) = 100m (NaCl) / {m (NaCl) + m (H₂O) }

    w (NaCl) = 100*50.0 / (50.0+150.0) = 25%
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