Química nutricional, Relaciones de Masa
Quiz
•
Chemistry, Biology
•
University
•
Medium

JUAN MORALES
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
¿Cuántos átomos de sodio hay en la siguiente cantidad de sustancia: 0.3 moles de átomos de sodio?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se tiene una muestra de benceno con moléculas. Calcule la cantidad de sustancia en dicha muestra, expresada como moles de moléculas de benceno.
10
0.8
3.33
6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se tienen 3.02 g de carbono-12 ¿cuál es la cantidad de moles en esta muestra?
8 mol
4.00 mol
0.5 mol
0.25 mol
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indica las moléculas de agua que hay en una muestra con 10g de agua.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es la masa de 1 pedazo de aluminio que tiene tantos átomos como los que existen en 2g de O2?
3.38 g
5.23 g
2.00 g
1.56 g
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
calcular la fórmula empírica para un compuesto que contiene 6.64 g de K, 8.84 g de Cr y 9.52 g de O.
K2Cr2O7
KCrO
K2Cr2O
KCrO3.5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
la fórmula empírica de la glucosa es CH2O, y su masa molar es 180 g/mol. Escribir su fórmula molecular.
CH2O
C2H2O5
C2H12O6
C6H12O6
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