
Molaridad
Authored by liliana melo
Chemistry
10th Grade
Used 72+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cual es la letra que representa la molaridad?
M
N
m
mol
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
De acuerdo a la siguiente formula Molaridad = masa soluto / (peso molecular x volumen disolución).
¿Cual es la molaridad de 54 g de NaCl en una disolución de 2 litros? Datos: pesos atomicos Na=23 Cl=35
0.46
46
0.56
1
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
De acuerdo a la siguiente formula: masa soluto = moles soluto x peso molecular
Determine la masa en gramos de 5 moles de NaCl Datos: pesos atomicos Na=23 Cl=35
390
120
89
290
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
De acuerdo a la siguiente formula: moles soluto = masa soluto/peso molecular
Determine las moles de soluto de una disolución que contiene 38 gramos de NaCl Datos: pesos atomicos Na=23 Cl=35
0.065
0.65
65
75
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Determine la concentración Normal de una solución que fue preparada disolviendo 15 gramos de H3PO4 en suficiente agua hasta completar 650 ml de solución.
0.70N
0.48
0.47
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
La normalidad de 50 gramos de Na2CO3 en 100 ml de disolución, es:
9.8N
9.4N
9.7N
8N
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se disuelven 15gramos de glucosa (C6H12O6) en 115gramos de agua (H2O). Determine la fracción molar de la glucosa.
0.012
0.987
1
0.0012
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