MOLARIDAD Y NORMALIDAD

Quiz
•
Chemistry
•
9th Grade
•
Hard
GUILLERMO BARRIENTOS
Used 77+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las unidades químicas que necesitan el cálculo del número de moles son:
Molaridad y Normalidad
Molaridad y molalidad
fracción molar y Normalidad
molalidad y moralidad
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Hallar el peso molecular de las siguientes sustancias: H2CO2 y Al(OH)3
DATO: C=12; O=16; Al=27; H=1
46
62
78
54
68
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántos moles existen en 25 g de H2SO4 ?
DATO: S=32; O=16; H=1
0.29 moles
0.25 moles
0.28 moles
0,23
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los moles del soluto por kilogramos de solvente representan:
Molalidad
Molaridad
Normalidad
fracción molar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si tengo 5M en 1 litro de solución, ¿de cuántos moles de soluto estamos hablando?
5
1
0.2
0,5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcular la molaridad de una disolución de 250 ml en la que están disueltos 29 g de cloruro sódico (NaCl)
DATO: Na=23; Cl=35
0,0025 mol/L
2,0 mol/L
2,25 mol/L
2,5 mol/L
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcule la molalidad que hay en 40,5g de HBr Los cuales se han disuelto en 0,35Kg de agua
DATO: Br=80; H=1
0,237 mol/Kg
2,493 mol/Kg
1,428 mol/Kg
2,391 mol/Kg
1,254 mol/Kg
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