Nh 2 = 181000 = 55.5molh 2o x solute = nsolute+nh2onsolute = 1+55.51 = 0.0177 The mole fraction of a solute in its one molal aqueous solution is: One molal solution means one mole of solute is present in 1 kg (1000 g)/ (18 g) = 1000/18 mole fraction of solute =1/ ( (1+1000/18)) = 18/1008 = 0.018.
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By chemistry experts to help you in doubts & scoring. Step by step video, text & image solution for calculate the mole fraction of the solute in a 1.00 molal aqueous solution. Mole of solute = 1;
Detailed solution mole fraction of solute x solute =?
Mole fraction of solute (x_solute) is the ratio of moles of solute to total moles (solute + solvent) in the solution. Molality (m) is defined as the number of moles of solute per kilogram of solvent. Since the solution is one molal, the wt. Molarity is the ratio of the number of moles of the solute to the total volume of solution in litre while molality is the ratio of the moles of solute to the mass of the solvent in kilogram.
Of solvent water = 1 kg = 1000 g also g. (a) 0.018 (b) 0.027 (c) 0.036 (d) 0.048. 1.00m solution means 1 mole solute is present in 1000g water. Of h 2 o = (2 × 1) + 16 = 18 g.
One molal aqueous solution contains 1 mole of the solute in 1000g of h 2oi.e., 1000/18 = 55.55 moles of water ∴ mole fraction of the solute = 1+55.551 = 0.018.
