
EXAMENE 2° QUIMESTRE 2do
Authored by Beatriz Caguana
Chemistry
2nd Grade - University
Used 10+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es la molaridad de una disolución que contiene 12 gramos de carbonato de sodio (Na2CO3) en 100 ml de solución?
1 M
0,5 M
0,1 M
1,1 M
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es la molalidad de una solución que contiene 60 gramos de NaOH en 500 g de solución?
0,0034 m
3 m
3,40
1,18 m
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un gas tiene un volumen de 495 ml a 27°C y una presión de 740 mm de mercurio, calcule el volumen final a 50°C y 800 mm de mercurio.
492,9 ml
300,9 ml
250,9 ml
100,9 ml
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿La Molalidad de un componente es?
Número de moles del soluto sobre el Kg de solvente
Número de moles del soluto sobre litros de solución
Masa del soluto sobre litros de solución
Equivalentes del soluto sobre volumen de solución
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Si se tiene 20 gramos de ácido sulfúrico H 2 SO 4 en 1 litro de solución. Determinemos la concentración expresada en normalidad.
0,5 Normal
0,4 Normal
0,25 Normal
1 Normal
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuántos moles de yoduro de potasio KI están presentes en 0,85 L de una solución de 0,55 M de KI?
3,1 moles
0,93 moles
0,46 moles
1,55 moles
7.
OPEN ENDED QUESTION
3 mins • 1 pt
¿Qué tuve que hacer para poder realizar los productos intermedios en la asignatura de Química?
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