
Cálculos quimicos
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Verónica Tosar
Used 3+ times
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6 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
¿Para separar sal de una muestra de agua de mar que método usarías?
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Se tiene una disolución de KOH al 20 % y densidad 1,05 g/mL. Calcula el volumen que debemos tomar de ésta disolución para preparar 1 litro de disolución 2 M
0,1mL
0,53L
3cL
5L
3.
DRAW QUESTION
3 mins • 1 pt
Dibuja el montaje de la práctica de filtración a vacío

4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Calcula el porcentaje en masa de yodo, I2, en una solución que contiene 0,065 moles de I2 en 120 g de tetracloruro de carbono CCl4. Datos: A(I)=129,9
12,34%
1,1%
0,5%
1.5%
5.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Queremos preparar 1,5 L de una disolución de cloruro de sodio (NaCl) de concentración 5 g/L Indica qué masa de sal se debe tomar.
2g
0,2kg
7,5g
1kg
6.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Una determinada masa de gas ocupa un volumen de 100 litros en condiciones ambientales de presión y temperatura (20º C y 1 atm). ¿Qué volumen ocupará la esta misma masa de gas cuando la presión descienda hasta 380 mm de Hg y la temperatura aumente hasta los 80º C.
2L
241mL
241L
5L
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