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Cuestionario de acidos y basicos

Froggy Jumps

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Cuestionario de acidos y basicos

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Peru

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Cuestionario de acidos y basicos
 

Froggy Jumps

Cuestionario de acidos y basicosOnline version

Cuestionario de acidos y basicos

by JERICO ESLAITER AYALA CRISTOBAL
1

Basado en el comportamiento ácido de SO₂ al disolverse, si se realiza el experimento con CO₂, ¿qué pH aproximado obtendrías?

2

Un posible error sistemático al medir el pH de la disolución de MgO es:

3

Según la teoría de Lewis, el ion O²⁻ presente en MgO al reaccionar con agua actúa como base porque:

4

Para mejorar la precisión al determinar la masa de óxido formado por calentamiento de Mg, se recomienda:

5

Si mezclas el óxido de azufre (SO₂) obtenido con un óxido básico como CaO, el tipo de reacción que ocurriría sería:

6

Dado que Mg(OH)₂ es poco soluble, para obtener una medida de pH representativa de la fase líquida se debería:

7

Comparando los óxidos SO₂ y SO₃, la fuerza del ácido resultante al disolverse en agua será mayor en:

8

Para diferenciar claramente un óxido neutro de uno ácido en el laboratorio, lo más eficiente es:

9

Si se repitiera el experimento sustituyendo Mg por Zn, el óxido resultante cambiaría su comportamiento en agua y se clasificaría como:

10

El pH medido para la disolución de SO₂ resultó ser 4 en lugar del valor teórico 2; esto indica principalmente:

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