The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is Molal. A) 0.0207 B) 0.0167 C) 2.46 D) 0.0186 E) 2.07 × 10^-⁵

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Molality = (Moles of solute / Kilograms of solvent)Moles of KBr = 2.21 g / 119 g/mol = 0.0186 molKilograms of water = 897 g / 1000 g/kg = 0.897 kgMolality = 0.0186 mol / 0.897 kg = 0.0207 mol/kg

The Concentration of KBr in a Solution Prepared by Dissolving