Una disolución se prepara a partir de 100 g de NaCl (58,44 g/mol) en 300 mL de agua. La concentración molar es de
Quiz 1 IIC2023

Quiz
•
Chemistry
•
11th Grade
•
Medium
Yuliana Chaves
Used 3+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
5,70
0,513
0,5133
5,704
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
La masa (en g) de sulfato de amonio (132,14 g/mol) que se deben añadir a 500 mL de disolución para obtener una disolución 0,250 mol/L de amonio.
15,1
16,5
8,26
7,57
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Determine el volumen en mL que se requieren para preparar una disolución 0,100 mol/L de NaNO3 a partir de 0,990 g de NaNO3 (84,99 g/mol)
50,0
100
30,0
116
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Determine la concentración molar de una disolución preparada a partir de 20,0 mL de CCl4 (76,72 g/mol, 1,59 g/mL) en 200 mL de C6H14 (disolvente)
2,07
1,88
1,9
1,50
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Determine el volumen en mL de una disolución de HBr 2,00 mol/L necesarios para preparar 400 mL de disolución de HBr 0,300 mol/L
26,7
60,0
1,50
10,0
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Determine la concentración molar de una disolución madre de la cual se toman 12,0 mL y se le añaden 35,0 mL de agua para obtener una concentración resultante de 0,0220 mol/L
2,10
0,00754
0,0642
0,0862
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