Question
If 58 g of calcium chloride CaCl2 is dissolved in 3.6 kg of solvent, what will be the molality of this solution?
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Answer to a math question If 58 g of calcium chloride CaCl2 is dissolved in 3.6 kg of solvent, what will be the molality of this solution?
Esmeralda
4.795 Answers
1. Calcular los moles de CaCl_{2}
\text{Masa molar de } CaCl_{2} = 40.08\ \text{g/mol} + (2 \times 35.45\ \text{g/mol}) = 110.98\ \text{g/mol}
\text{Moles de } CaCl_{2} = \frac{58\ \text{g}}{110.98\ \text{g/mol}} = 0.523\ \text{mol}
2. Calcular la molalidad:
\text{Molalidad} = \frac{\text{moles de soluto}}{\text{kg de disolvente}}
\text{Molalidad} = \frac{0.523\ \text{mol}}{3.6\ \text{kg}} = 0.145\ \text{m}
2. Calcular la molalidad:
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