PRACTICA CALIFICADA N° 1 - ESTADO GASEOSO 3°A
Quiz
•
Chemistry
•
2nd Grade
•
Hard
FERNANDO ABRAMONTE
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A 18°C y 765 mm Hg, 1,29 Litros de un gas pesa 2,71 g. Calcular el peso aproximado del gas.
(3.5 Ptos.)
4,98
49,8
498
9,48
2,4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Calcular el volumen en litros ocupado por 280g de a 22°C y 0,97 atm (3.5 Ptos)
942,4
426,4
249,4
142,6
615,4
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se tiene 3,5g de nitrógeno gaseoso a 0°C y 760 mmHg. ¿Qué masa de propano a las mismas condiciones de presión y temperatura ocupa el mismo volumen? (3.5 Ptos)
4,4
1,1
5,5
2,2
3,3
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un recipiente de 20 litros contiene 48g de CH4 y 30g C2H6de . Calcular la presión de la mezcla a una temperatura de 27°C.(3,5 Ptos.)
2,92
9,24
4,92
9,42
7,38
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un gas a 1248 mmHg y 527°C tiene una densidad igual a 2,7g/L. Hallar la masa atómica de "X". (3,5Ptos.)
41
14
32
12
64
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
La densidad de X a presión y temperaturas normales es 2.1 g/L. ¿Cuál es el peso molecular de X?
: (2,5 Ptos)
74
47
52
60
28
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