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

Determine the open intervals on which the function f(x)=2x−tanx,(− 2π , 2π ), is concave upward of concave downward. Find the points of inflection and discuss

If a scientist found very high concentrations of organic biomarkers deep inside a 3.9 billion year old meteorite, how would this effect the explanation of the o

Select the correct answer. Consider functions f and g. f(x)=x^3+5x^2-x Which statement is true about these functions?

LITERARY ANALYSIS: In this excerpt from the screenplay of Hotel Rwanda, the language used by the characters is pivotal in creating a distinct emotional atmosphe

expatriate failure, defined in broad terms, refers to the . group of answer choices manager's miscues, which give competitors a market advantage manager's p

in national federation of independent business v. sebelius (2012)the supreme court found that a.health care should be regulated by the state governments. b.empl

Write a research-based argumentative essay for or against free education for children worldwide ( ROUGH DRAFT )

3 and 2/4 as a percent

When Jose plays his guitar, the friction between his fingers and the strings allows him to pluck the strings. The friction creates some heat and the vibration o

If $850 is invested in an account that earns 2.6% yearly interested compounded quarterly, then which of the following is the worth of this investment after 5 ye