Question

calculate the molality of a solution of NaCl in water if it is given that a 54 grams of NaCl is dissolved in 10 moles of water

Answer 1

Answer:

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).

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