lucyunderwood lucyunderwood

10-05-2020
Chemistry

contestada

Determine the [OH−]
, pH, and pOH of a solution with a [H+]
of 4.7×10−5 M
at 25 °C.

Determine the OH pH and pOH of a solution with a H of 47105 M at 25 C class=

Respuesta :

15-05-2020

Answer:

Explanation:

[H+] = 4.7 x 10⁻⁵ M

[H+][OH⁻] = 10⁻¹⁴

[OH⁻] = [tex]\frac{10^{-14}}{4.7\times 10^{-5}}[/tex]

= .2127 x 10⁻⁹ M

pH = - log[H+]

= - log [ 4.7 x 10⁻⁵]

= - log4.7 + 5

= 4.328

pH + pOH = 14

pOH = 14 - pH

= 14 - 4.328

= 9.672

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