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1.) Calcular el pH de esta solucin: H 3 O + = 1,28 x 10 -4 ? Grupo de opciones de respuesta 4.2 3.9 2

1.) Calcular el pH de esta solucin: H 3 O + = 1,28 x 10 -4 ?

Grupo de opciones de respuesta

4.2

3.9

2

3.1

2.) Es esta solucin: H 3 O + = 1.28 x 10 -4 un cido o una base?

Grupo de opciones de respuesta

cido

base

neutral

3.) Clasifique estas soluciones de mayor a menor en concentracin de H 3 O +

1) pH = 5

2) H 3 O + = 1x10 -8

3) una solucin preparada con una dilucin de 1 a 10 de HCl 0,001 M

Grupo de opciones de respuesta

123

312

213

231

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