
Química (m, M, N)
Authored by Daniela Peralta
Chemistry
University
Used 26+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántos gramos de hidróxido de sodio NaOH, se necesitan para preparar 150ml de una solución 0,2M? La masa molecular del NaOH es de 40 gr/mol.
Se necesitan 12 gramos de NOH.
Se necesitan 1,2 gramos de NaOH.
Se necesitan 1,2 gramos de NOH.
Se necesitan 12 gramos de NaOH.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular la molaridad de 5 gramos de ácido sulfúrico (H2SO4) en una disolución de 200 cm3.
1,23 M
2,55 M
0,123 M
0,255 M
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcule la molalidad de una solución que se prepara disolviendo 12 gramos de hidróxido de aluminio Al(OH)3 en 350 gramos de agua.
0,43 molal
4,3 molal
43 molal
0,043 molal
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcula la molalidad de una disolución de HBr al 27% m/m de densidad 1,45g/ml.
45,6 mol/cm
4,56 mol/kg
45,6 molal
45,6 M
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
140,16g N
410,1 g N
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular ¿Cuántos Eq - g se encuentran en 600mL de una solución 1,5N?
0,1 Eq-g
2 Eq-g
1 Eq-g
0,9 Eq-g
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular los gramos necesarios de cloruro de sodio para que esté en 12% en peso en una disolución con 1 litro de agua.
11,7g
20,7g
136g
30,7g
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