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Mekhanik [1.2K]
3 years ago
12

El suero fisiológico tiene una concentración de 8,78 gr/lt. Calcula la masa de NaCl que ingresa en el organismo de un paciente a

l que se le administra suero durante 4 hs con una velocidad de goteo de una gota por segundo (Volumen gota: 0,05 ml)
Chemistry
1 answer:
Luda [366]3 years ago
8 0

Un paciente que recibe suero fisiológico a una velocidad de infusión de 1 gota = 0,05 ml por segundo recibirá en 5 horas 790 grs de NaCl, tomando en cuenta que la solución acuosa de suero fisiológico contiene 0,878 grs/mL de NaCl.

Explicación

Los datos que se tienen son:

  • Concentración de NaCl 0,878 grs/ml
  • Volumen de la gota: 0,05 ml/gota
  • Velocidad de infusión 1 gota/ seg = 60 gotas/ min = 3 ml/min
  • Tiempo de infusión = 5 horas = 300 minutos

Ya establecidas las respectivas conversiones se trata de determinar qué volumen de suero fisiológivo se ha infundido al paciente en 5 horas

Si se infunden 3 ml cada minuto, ¿Cuánto se habrá infundido en 300 minutos?

3 ml ______________ 1 min

X ________________ 300 min

X = (300 min x 3 ml) / 1 min

X = 900 ml

Como en 5 horas el paciente ha recibido 900 ml de suero, se determina la cantidad de NaCl que se encuentra en ese volumen de líquido

0,878 grs __________ 1 ml

X ________________ 900 ml

X = (900 ml x 0,878 grs) / 1 ml

X = 790 grs de NaCl

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Answer:

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Molar mass of C8H7N3O2 = (12x8) + (7x1 ) + (14x3) + (16x2)

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Step 2:

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Step 3:

Determination of the molarity of the stock solution of Luminol.

Molarity is simply defined as the mole of solute per unit litre of water. Mathematically, it is represented as:

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With the above formula, we can obtain the molarity of the stock solution of Luminol as follow:

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