maggie43 maggie43

03-03-2017
Chemistry

contestada

A solution with pH of 9 has [OH-] concentration of

Respuesta :

10-03-2017

pH = -log([H+])
[H+] = 10^(-pH)

[H+] = 10^(-9)

[H+][OH-] = Kw
Kw = 1.0*10^-14 at 25 degrees celsius.

[OH-] = Kw/[H+] = (1.0*10^-14)/(1*10^-9) = 1.0*10^-5

The concentration of OH- ions is 1.0*10^-5 M.

Answer Link

Otras preguntas

Patrick makes about 74% of his free throws when playing basketball. He shoots 40 free throws at practice. About how many free throws will he make? Pls help this

A circle has an area of 36π square meters. What is the circumference of this circle? 6π meters 12π meters 18π meters 36π meters

4 3 С 2 1 In the similarity transformation of AABC to ADEF, AABC was dilated by a scale factor of [?], reflected across the [ ], and moved through the translati

In the Country A legal system, a defendant is presumed innocent until proven guilty. Consider a nullhypothesis, H0, that the defendant is innocent, and an alter

Justin, Cam, and Ben are playing a board game where exactly one player will win. Ben estimates that Justin has a 20%, percent chance of winning each game and th

What is this area of this rectangle

Normal diastolic pressure for a healthy adult falls between A. 120 and 130 B. 60 and 80 C. 90 and 120 D. 80 and 90

Why do we translate the code in mRNA during translation?.

A transfer cell has knobby growths extending into the cell that facilitate movement of minerals from its.

help, i need to get my homework done before the 3rd of march :oo