PRÁCTICA 1:UNIDADES QUÍMICAS DE MASA
Quiz
•
Chemistry
•
1st - 12th Grade
•
Practice Problem
•
Hard
Juan Huanca
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Qué es una u.m.a?
Unidad patrón para expresar la masa de las sustancias químicas
Unidad de medida para expresar a los ácidos y oxácidos
Doceava parte del hidrógeno como medida
unidad de masa atómica de los elementos metálicos
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular el número de mol contenidos en 240 gramos de oxígeno.
12
16
15
18
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcular la masa molecular del siguiente compuesto químico:
Al2(SO4)3 Dato: m.a. (uma): Al=23 ; S=32
89
98
88
78
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se denomina la unidad química de masa patrón?
Mol
m.a.
uma
Masa molecular
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La equivalencia en masa de 1,66x10-24 gramos corresponde a:
1 mol
1 uma
1 átomo
1 molécula
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Hallar la masa molecular del dióxido de carbono CO2
48
40
35
44
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Qué compuesto tiene de masa molecular 58 uma?
C4 H10
C5 H12
C6 H12
C3 H8
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