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sdas [7]
3 years ago
11

What is the species that determines the ph of a solution?

Chemistry
1 answer:
Mice21 [21]3 years ago
7 0
Not sure what you mean by species, but the ph of a solution is determined by the concentration of hydroxide and/or hydrogen. Water is the perfect neutral contain one hydrogen atom and one hydroxide atom. Bases are more basic the higher amount of hydroxide present, and vice versa.
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Answer:

pH = 4.27. Porcentaje de disociación: 0.03%

Explanation:

El pH de un ácido débil, HX, se obtiene haciendo uso de su equilibrio:

HX(aq) ⇄ H⁺(aq) + X⁻(aq)

Donde la constante de equilibrio, Ka, es

Ka = 1.65x10⁻⁸ = [H⁺] [X⁻] / [HX]

Como los iones H⁺ y X⁻ vienen del mismo equilibrio podemos decir:

[H⁺] = [X⁻]

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Reemplazando es Ka:

1.65x10⁻⁸ = [H⁺] [H⁺] / [0.1732M]

2.858x10⁻⁹ = [H⁺]²

5.35x10⁻⁵M = [H⁺]

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<h3>pH = 4.27</h3>

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Reemplazando

5.35x10⁻⁵M / 0.1732M * 100

<h3>0.03%</h3>
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Pb(NO3)2 (aq) + 2 NaI (aq) --&gt; PbI2 (s) + 2 NaNO3 (aq)
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