
SEleccion 3 Electrolisis
Authored by jorge barrera
Chemistry
3rd Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Recubrimiento de los aceros con una fina capa de zinc se denomina
cromado
dorado
galvanizado
cupreado
2.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
En una celda electrolítica circula una corriente de 9,65 amperios a través de una solución de CuSO4. ¿Qué tiempo, en segundos, es necesario para que se deposite en el cátodo 1,27 g de cobre?
Masa atómica (Cu)=63,5uma
200
400
500
4000
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el catodo los cationes se
oxidan
reducen
4.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
cuantos litros de cloro gaseoso se desprenden a condiciones normales por el paso de una carga de 6faraday.
22,4 L
44,8 L
67,2 L
89,6 L
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Que electrolito genera la produccion de hidrogeno en el catodo
KCl (liquido)
KCl (acuoso)
CrCl3 (acuoso)
ZnCl2 (liquido)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El hidroxido de sodio se obtiene de la electrolisis del...
Salmuera
NaCl fundido
agua aceidulada
7.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Calcule la intensidad de corriente, en amperios, que se debe aplicar para depositar 15,6 gramos de cromo en el cátodo de una celda electrolítica, que contiene una solución de CrCl2(ac), en un tiempo de 50 minutos.
Masas atómicas: Cr=52
19,6A
38,6A
13,9 A
19,3 A
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