The Total solution for NCERT class 6-12
If the density of some lake wateris 1.25 g mLтИТ1┬аand contains 92 g of Na+┬аionsper kg of water, calculate the molality of Na+┬аions in thelake.
Number of moles present in 92 g of Na+┬аions =┬а
= 4 mol