
EXAMEN ATRASADO DE QUIMICA 2DO QUIMESTRE
Quiz
•
Chemistry
•
2nd Grade
•
Medium
alexis calle
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular el número de moles de una solución cuya concentración molar es de 5M disueltos en 2 litros de solución
10 MOLES
20 MOLES
30 MOLES
40 MOLES
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular los kg solventes de agua necesarios para poder preparar una solución cuya concentración molal es igual a 2,6 molal y que contiene 0,65 moles de glucosa
0,15 KG
0,25 KG
0,35KG
0,45KG
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Es la relación existente entre la masa del soluto y la masa equivalente:
#moles
# de equivalentes
molaridad
P.P.M
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
una muestra de agua de 750ml tiene 6 mg de F ¿Cuántas p.p.m de fluoruro hay en la muestra
2 PPM
4PPM
6PPM
8PPM
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Cuál es el porcentaje en volumen de una solución que contiene 1 ml de ácido en 40 ml de agua:
2,44
3,44
4,44
5,44
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
cuantos gramos de NaCL se requieren para preparar 250 gr de una solución al 5%:
42,5 GR
32,5 GR
22,5 GR
12,5 GR
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular cual es la normalidad de una solución de KCl que tiene 0,5 equivalentes del ácido en 5 litros de solución
0,1 N
0,3 N
0,5N
O,7N
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