Calculate the molarity of a solution prepared by mixing 250 mL of 0.75 M H2SO4 with 150 mL of water
Question
Calculate the molarity of a solution prepared by mixing 250 mL of 0.75 M H2SO4 with 150 mL of water
Solution
Para calcular la molaridad de la solución resultante, primero debemos determinar la cantidad de moles de H2SO4 en la solución inicial y luego el volumen total de la solución final.
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Calcular los moles de H2SO4 en la solución inicial:
- Molaridad (M) = 0.75 M
- Volumen (V) = 250 mL = 0.250 L (convertido a litros)
Moles de H2SO4 = Molaridad × Volumen Moles de H2SO4 = 0.75 M × 0.250 L Moles de H2SO4 = 0.1875 moles
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Calcular el volumen total de la solución final:
- Volumen inicial de H2SO4 = 250 mL
- Volumen de agua añadido = 150 mL
- Volumen total = 250 mL + 150 mL = 400 mL = 0.400 L (convertido a litros)
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Calcular la molaridad de la solución final:
- Moles de H2SO4 = 0.1875 moles
- Volumen total = 0.400 L
Molaridad final (M) = Moles de soluto / Volumen de solución Molaridad final (M) = 0.1875 moles / 0.400 L Molaridad final (M) = 0.46875 M
Por lo tanto, la molaridad de la solución preparada es aproximadamente 0.469 M.
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