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A nurse was required to make a 7% m/v solution of glucose (C6H12O6). If she needed to make 40 L of the solution then what mass of glucose was required? Question 1 options: 7 g 2800 g 28 g 28 kg 2800 kg 7 kg

Question

A nurse was required to make a 7% m/v solution of glucose (C6H12O6). If she needed to make 40 L of the solution then what mass of glucose was required?

Question 1 options:

7 g

2800 g

28 g

28 kg

2800 kg

7 kg

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Solution

Para resolver este problema, sigamos los siguientes pasos:

  1. Entender la concentración m/v: Una solución al 7% m/v significa que hay 7 gramos de soluto (glucosa) por cada 100 mililitros de solución.

  2. Convertir el volumen de la solución a mililitros:

    • Sabemos que 1 litro = 1000 mililitros.
    • Entonces, 40 litros = 40 * 1000 = 40,000 mililitros.
  3. Calcular la masa de glucosa necesaria:

    • Si 7 gramos de glucosa están presentes en 100 mililitros de solución, entonces en 40,000 mililitros, la masa de glucosa será: Masa de glucosa=(7 g100 mL)×40,000 mL \text{Masa de glucosa} = \left( \frac{7 \text{ g}}{100 \text{ mL}} \right) \times 40,000 \text{ mL}
    • Simplificando: Masa de glucosa=7×400=2800 g \text{Masa de glucosa} = 7 \times 400 = 2800 \text{ g}

Por lo tanto, la masa de glucosa requerida es 2800 g.

This problem has been solved

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