Reactivo Limite- Rendimiento de reacciones
Quiz
•
Chemistry
•
10th Grade
•
Medium
Daniela Lopez
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13 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
3H2S + 8HNO3 → 3H2SO4 + 4H2O + 8NO
Si se tienen 20 gramos de cada reactivo, y se desea saber la cantidad de agua que se formará ¿Quien es el reactivo limite?
H2SO4
NO
HNO3
H2S
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
S8 + 8Fe → 8FeS
Calcula el porcentaje de rendimiento de una reacción que inicia con 200g de S8, si al realizar la reacción en el laboratorio se obtuvo como rendimiento real 500g de FeS.
(PM S=32 g/mol, PM Fe= 56 g/mol)
11%
68,75%
80%
90,90%
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
S8 + 8Fe → 8FeS
Calcula el %de rendimiento de la reacción si al realizar el cálculo con 240g de Fe, se obtiene teóricamente de FeS 377,14g y el rendimiento real de FeS es de 300g.
(PM S=32 g/mol, PM Fe= 56 g/mol)
12,57%
90%
79,54%
85,8%
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere la siguiente reacción:
MnO2 + 4 HCl → MnCl2 + Cl2 + 2 H2O
Al inicio se ponen a reaccionar 3 moles de MnO2 con 8 moles HCl ¿ Cual es el reactivo limite?
MnO2
HCl
Ambos se consumen completamente
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere la siguiente reacción:
CH4 + 2O2 → CO2 + 2H2O
Si se emplean 8 g de CH4 con 32 g de O2 ¿ Cual es el reactivo limite?
PM CH4 = 16 g/mol PM O2 = 32 g/mol
O2
CH4
Ambos reactivos se consumen completamente
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Que característica determina la concentración de productos de una reacción química
Los reactivos
El oxigeno
El reactivo limite
La cantidad de moles
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En está imagen el reactivo limitante es
Oxígeno
Hidrógeno
Agua
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