
Masa / Mol / partículas
Interactive Video
•
Chemistry
•
University
•
Practice Problem
•
Easy
Rocio Rosado
Used 3+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se define el peso molar (PM) de una molécula o compuesto?
La masa de un solo átomo.
La suma de los pesos atómicos de cada uno de los átomos de los elementos que conforman la molécula.
El número de moles en un gramo de sustancia.
La cantidad de sustancia en un kilogramo.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el peso molar del carbonato de calcio (CaCO3)? (Considera Ca=40, C=12, O=16)
90 g/mol
98 g/mol
100 g/mol
102 g/mol
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si tienes 0.35 kg de harina, ¿cuántos gramos son?
3.5 g
35 g
350 g
3500 g
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el número de átomos de cloro contenidos en 100 gramos de cloruro de magnesio (NaCl)?
1.030 x 1024 átomos de Cl
6.3231 x 1023 átomos de Mg
6.3231 x 1023 moléculas de MgCl2
2.528 x 1024 átomos de Cl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si se tienen 1.264 x 10^24 átomos de cloro, ¿cuántos gramos de cloruro de magnesio (NaCl) hay?
100 g de NaCl
123 g de NaCl
1.05 mol de MgCl2
6.3231 x 10^23 moléculas de MgCl2
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