4L of 0 02 M aqueous solution of NaCl was diluted by adding one litre ofwater The molality of - Chemistry - Solutions

Question

4L of 0 02 M aqueous solution of NaCl was diluted by adding one
litre ofwater The molality of the resultant solution is
_____________ (i) 0 004(ii) 0 008(iii) 0 012(iv) 0 016
EXPLAIN IN DETAIL

Kumar Sarang · Accepted Answer

Molarity of NaCl = 0 02 M
No of moles of NaCl =0 02 x 4 = 0 08 moles

Final Volume of solution = 4 +1 =5 litres
Mass of 5 L water = 5 kg

Molality = No of moles of solute / kg of solvent = 0 08 moles / 5
kg = 0 016 m

4L of 0.02 M aqueous solution of NaCl was diluted by adding one litre ofwater. The molality of the resultant solution is _____________.(i) 0.004(ii) 0.008(iii) 0.012(iv) 0.016EXPLAIN IN DETAIL.

4L of 0.02 M aqueous solution of NaCl was diluted by adding one litre ofwater. The molality of the resultant solution is _____________.(i) 0.004(ii) 0.008(iii) 0.012(iv) 0.016
EXPLAIN IN DETAIL.