SOLUCIONES II
Quiz
•
Chemistry
•
11th Grade
•
Hard
Jacqueline Miranda
Used 15+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La gelatina es un ejemplo de ...
mezcla homogénea
mezcla heterogénea
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se disuelven 0.25 moles de cloruro de sodio con agua hasta llegar a un volumen disolución de 400 ml ¿cual es la molaridad de la solución?
0.625 mol/L
0.632 mol/L
0.624 mol/L
Ninguno
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Se disuelven 45g de ácido oxálico (MM= 90g/mol) en suficiente agua para tener 500mL de solución ¿Cual es la concentración Molar de la solución de ácido oxálico?
0,050 M
0,100 M
0,025 M
1,00 M
4,500 M
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
si se disuelven 10 g de NaCl en 90 g de agua, ¿cuál es el porcentaje en masa de la sal?
90%
100%
10%
5%
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál es la molaridad de una solución que se preparó disolviendo 42 gr de ácido nítrico HNO3 en 900 ml de solución?
0.98 mol/L
0.67 mol / L
0.74 mol/ L
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A que concentraciòn pertenece la siguiente fòrmula; es igual a nº de moles de soluto / kg de disolvente.
Molaridad
Normalidad
Molalidad
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