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12 July, 05:58

Juanita dissolves 46 g of MgBr2 (molar mass: 184.11 g/mol) in 0.5 kg of distilled water. What is the molality of the solution?

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  1. 12 July, 08:20
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    Formula: molality, m = n solute / kg solvent

    n solute = # of moles of solute = mass (g) / molar mass

    Molar mass of Mg Br2 = 184.11 g/mol

    m = [46g / 184.11 g/mol] / 0.5 kg = 0.50 mol/kg
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