Masa molecular
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
AlePau Roman
Used 26+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuál es la masa molecular del H2SO4?
Datos: H= 1g/mol S= 32g/mol O= 16g/mol
98g/mol
89 g/mol
59 g/mol
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Para el furano C4H4O, Cuántos átomos de carbono (C) hay en una molécula de furano?
2
4
1
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La masa molar de la sal MgSO4 es:
Teniendo en cuenta:
Mg=24,3 g/mol S= 32 g/mol O= 16 g/mol
120.36 g/mol
60.3 g/mol
97.2 g/mol
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
En una industria se duda entre utilizar como fuente de aluminio la bauxita (Al2O3) o el Al(OH)3 . Indica cuál de las dos sustancias tiene un mayor peso molecular.
Datos: Al = 27; O= 16; H= 1 g/mol.
Al2O3
Al(OH)3
Tienen el mismo peso molecular
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
La masa atómica puede expresarse en:
litros, gramos
litros, gramos, uma
gramos , uma
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
La masa molecular se calcula:
Mediante la multiplicación de las masas atómicas de los átomos que constituyen la molécula
Mediante la suma de las masas atómicas de los átomos que constituyen la molécula
Mediante la suma de los átomos que constituyen la molécula
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Número atómico (Z) es:
Es el número total de neutrones y protones presentes en el núcleo de un átomo de un elemento.
Es el número de protones en el núcleo del átomo de un elemento
Unidad básica de un elemento que puede intervenir en una combinación química
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