
Parcial optometría
Chemistry
University
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16 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Teniendo en cuenta si son verdaderas o falsas las siguientes afirmaciones seleccione la respuesta correcta
(I) La concentración de una disolución es la cantidad de soluto presente en una cantidad dada de disolvente, o en una cantidad dada de disolución.
(II) La disolución es el procedimiento que se sigue para preparar una dilución menos concentrada a partir de una más concentrada
(I) y (II) son verdaderas
(I) verdadera (II) falsa
(I) y (II) son falsas
(I) falsa (II) verdadera
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Un paciente requiere recibir 85 gramos de azúcar cada 12 horas. ¿Qué volumen de una disolución de glucosa al 5,0% (m/V) se debe administrar al paciente cada 12 horas?
500 mL
1700 mL
2200 mL
3900 mL
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se preparan 50 mL de solución de cloruro de sodio (NaCl) 0.9% m/v
Los gramos utilizados de soluto son:
4.5 g
0.45 g
0.9 g
9.0 g
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se preparan 50 mL de solución de cloruro de sodio (NaCl) 0.9% m/v
La molaridad es:
0.15 M
0.015 M
1.5 M
0.25 M
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se preparan 50 mL de solución de cloruro de sodio (NaCl) 0.9% m/v
El número de milimoles presentes en la solución es:
0.77
7.70
5.70
77.0
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se preparan 50 mL de solución de cloruro de sodio (NaCl) 0.9% m/v
La Osmolaridad de la solución es:
308.2
0.31
250,8
0.25
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El volumen de una disolución de cloruro de sodio 17.53 % p/v que debe utilizarse para preparar 250 mL de una dilución de NaCl 0.3M es:
10 mL
15 mL
20 mL
25 mL
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