Formula empírica y molecular

Quiz
•
Chemistry
•
11th Grade
•
Hard
Daniela Rodriguez
Used 43+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál es la fórmula empírica de un compuesto formado por C con 85.45% e H con un 14.55%?
C2H3
CH3
CH2
C2H
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál es la fórmula molecular de un compuesto que posee una fórmula empírica de CH3, y una masa molar dada de 60.2g?
C2H6
C4H12
C3H15
CH3
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Qué compuesto tiene mayor composición de Oxígeno?
Fe2O3
Al2O3
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un compuesto de fórmula empírica C2H3Br2 tiene una masa molar de 373.69 g/mol. ¿Cuál es su fórmula molecular?
CHBr
C4H6Br4
C6H9Br6
C4H4Br2
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Calcula la fórmula empírica de un hidrocarburo que en un análisis dio la siguiente composición: 85,63% de C y 14,3% de H
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determina la composición centesimal del hidróxido de calcio, Ca(OH)2
Masas atómicas (u): H=1; O=16; Ca=40
65,7 % Ca
12,3 % O
22 % H
59,8 % Ca
38,4 % O
1,8 % H
66,5 % Ca
21,1 % O
12,4 % H
54,1 % Ca
43,2 % O
2,7 % H
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determina el porcentaje de plomo en el sulfato de plomo (IV), Pb(SO4)2.
51,88 %
48,12 %
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