
Agua
Authored by LISA RANCAN
Chemistry
University
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es el numero máximo de puentes hidrogeno que puede formar una molécula de agua?
1
2
3
4
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
La constante dieléctrica del agua a 25 °C es de 78.5, la del etanol es de 24 y la del metanol es de 32.6.
Cual de ellos será mejor disolvente para sustancias iónicas?
El agua
El etanol
El metanol
Depende del pH
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Encuentra la respuesta falsa con respecto a los compuestos apolares en solución acuosa
tienden a asociarse entre sí
su asociación aumenta la entropía
su asociación espontanea se define efecto hidrófobo
tienden a separarse
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Moléculas que poseen un extremo hidrofílico y otro hidrófobo, se definen
anfoteras
anfifílicas
quirales
hidropáticas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
en la reacción de ionización del agua, el producto de la concentración de iones hidronio por la concentración de iones hidroxilo se denomina:
pH
pK
Kw
Ka
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es la concentración de ion hidrógeno en una disolución de pH 8
10-8
108
10-6
106
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es la concentración de iones hidróxido en una solución de pH 8
10-8
108
10-6
106
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