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Units & Conversionshard
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A standard 'molal' concentration is moles solute/kg solvent\text{moles solute} / \text{kg solvent}moles solute/kg solvent. If 10 g10 \text{ g}10 g of NaCl\text{NaCl}NaCl (molar mass 58.44 g/mol58.44 \text{ g/mol}58.44 g/mol) is dissolved in 500 mL500 \text{ mL}500 mL of water (density 1 g/mL1 \text{ g/mL}1 g/mL), what is the molality?