calculate the mole fraction of NaCl
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Explanation:
so moles NaCl = 70.128 g / (58.44 g/mol) = 1.2 mol . Plug moles value and the mass of the solvent into the molality formula. Divide 1.2 mol by 1.5 kg, and you'll find out that the molality of the NaCl solution is 0.8 molal (in standard molality units: 0.8 mol/kg).
Harry098:
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