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If the density of some lake water 1.25g mol^(-1) is and contains 92 g of Na^(+) ions per kg of water, calculate the molality of Na^(+) ions in the lake. |
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Answer» Solution :Number of MOLES present in 92 g of `Na^(+)` IONS `= (92 g)//(23 g//mol)` = 4 mol Therefore, MOLALITY of `Na^(+)` ions in the lake `= (4 mol)/(1 KG)=4 m` |
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