Respuesta :

agarcia9270

Answer:

The answer to your question would be B or 6.31 x 10–3 M

Explanation:

Answer:

The concentration of OH- ions = 6.31*10⁻³M

Explanation:

Given:

pH of ammonia solution = 11.8

Formula:

[tex]pH + pOH = 14\\\\pOH = 14-pH = 14 - 11.8 = 2.2\\\\pOH = -log[OH-]\\[/tex]

[tex][OH-] = 10^{-pOH } = 10^{-2.2}  = 6.31*10^{-3} M[/tex]

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