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
Solution
Para resolver este problema, sigamos los siguientes pasos:
-
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.
-
Convertir el volumen de la solución a mililitros:
- Sabemos que 1 litro = 1000 mililitros.
- Entonces, 40 litros = 40 * 1000 = 40,000 mililitros.
-
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:
- Simplificando:
Por lo tanto, la masa de glucosa requerida es 2800 g.
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