
TEST ANÁLISIS TEMA 5.1
Authored by Jose eusebio Blasco Martin
Chemistry
University
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué define un ácido según Brønsted y Lowry?
A) Aceptor de electrones
B) Donador de protones
C) Donador de electrones
D) Aceptor de protones
Answer explanation
Bronsted y Lowry, 1923:
Ácido: Toda sustancia capaz de ceder protones.
Base: Toda sustancia capaz de captar protones.
Reacción de neutralización: Todo proceso de transferencia de protones desde un ácido a una base.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sustancia es la base conjugada del ácido acético?
H3O⁺
Acetona
Ac⁻
NH4⁺
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el valor del producto iónico del agua a 25 °C?
10⁷
10⁻⁶
10⁻¹⁴
1
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un ácido con Ka muy alta se considera:
Débil
Neutro
Fuerte
No ácido
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En agua, un medio básico se caracteriza por:
[H⁺] > [OH⁻]
[H⁺] = [OH⁻]
[H⁺] < [OH⁻]
[H⁺] = 0
Answer explanation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la relación entre pH y pOH?
pH + pOH = 0
pH = pOH
pH + pOH = 14
pH - pOH = 7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el pH de una disolución neutra a 25 °C?
1
7
10
14
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