
ETS MCA
Authored by GM CECYT
Other
10th Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si se tiene un valor de 300 puntos IMECAS de 03 ¿Qué calidad del aire se tiene y con qué color se representa?
Extremadamente Mala, Rojo
Extremadamente Mala, Morado
Mala, Naranja
Muy Mala, Morado
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Se tienen 250 puntos IMECAS de SO2, determine la concentración asociada a estos puntos IMECAS.
0.45 ppm
0.50 ppm
0.95 ppm
1.5 ppm
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Se hace reaccionar una tira de magnesio de 0.0252 g con ácido clorhídrico al 10% contenido en una probeta invertida en el centro de un cristalizador. Se lee en la escala de la probeta que el magnesio desplazo 35ml de hidrogeno. Calcular la masa en gramos correspondiente al volumen obtenido, si la temperatura es de 26°C y la presión es de 575.8 mmHg.
1.285 x 10-2 g
2.178 x 10-4 g
5.087 x 10-6 g
8.135 x 10-9 g
4.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Una muestra de gas ocupa un volumen de 175ml a 150mmHg y 23°C calcula su volumen en condiciones normales (25°C y 1 Atm) y la cantidad de sustancia en mol. (R= 0.0821 atm L °K-1 mol-1)
V2=0.456 Lts
n=4.234 x 10-8 mol
V2= 0.972 Lts
n= 2.636 x 10-4 mol
V2=0.0318 Lts
n=1.418 x 10-3 mol
V2= 1.876 Lts
n= 7.932 x 10-2 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El método de Exposición de Líquenes Estandarizado es un ejemplo de muestreo.
Estándar
Por bloques
Especifico
Normal
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