
Cuestionario de Química
Authored by Maria Lascano
Chemistry
2nd Grade
Used 3+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una disolución se prepara disolviendo una determinada cantidad de soluto en un disolvente; si la cantidad de soluto es la máxima que puede disolver el solvente a una temperatura dada, se dice que se encuentra:
Diluida.
Sobresaturada.
Concentrada.
Precipitada.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo determinas si una solución es saturada, insaturada o sobresaturada?
por la cantidad de disolvente.
por la cantidad de energía.
por la cantidad de presión.
por la cantidad de soluto.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determina el porcentaje en volumen de una disolución de 340 mL que se ha obtenido disolviendo 25 mL de etanol en agua
5,37%
7,53%
6,35%
7,35%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la cantidad de kilogramos de solvente que debe adicionarse a 120 gramos de sacarosa (C12H22O11) para preparar una solución al 0,28 molal?
1.25 Kg.
2.36 Kg.
0.125 Kg.
2.36 molal.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcular la normalidad de 50 gramos de Fe2(CO3)3 en 750 ml de disolución:
2.47 N
1,13 N
1,37 N
0.47 N
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la concentración en mol/litro de una disolución que contiene 0.01 kilogramos de sulfato cúprico (CuSO4), en 350 cm3 de solución?
0.478 N
0.178 mol/L
0.356 mol/L
0.478 M
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculemos la molalidad de una disolución formada por 75g de BaSO4 en 1,25 galones de agua
0,05n/Kg
0,07n/Kg
1,23n/Kg
0,08n/Kg
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