
APORTE AGOSTO
Authored by Jeferson Briones
Chemistry
11th Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Los gramos de soluto que están contenidos en 3000 ml de solución de Ni(ClO2)2 con una concentración de 0,5 N, es:
135,5g
125,5g
145,5 g
111g
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se disuelven 40 gramos de etanol (C2H6O)en 60 gramos de agua. Calcule la fracción molar del soluto
0,18
0,19
0,20
0,21
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la normalidad de una disolución de HCl que contiene 100 gramos de soluto en 3 litros de disolución
0,8
0,9
0,10
0,22
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se dispone de 1 L de una disolución de concentración 0.7M de ácido cítrico en agua. ¿Cuánta agua debe añadirse para que obtener una dilución 0.5 M
?
1
1,2
1,3
1,4
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se toman 50 ml de una disolución de amoníaco en agua 1M y se añaden a un matraz que contiene 30 ml de agua. ¿Cuál es la concentración de amoníaco de la dilución del matraz?
0,45
0,3
0,625
0,88
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