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

What happens when we fail to keep our word?

Kyle saves 6% of his income for his new car. this year his salary was $6000 less than the previous year, and he saved $2745. what was his salary in the previous

1. You have 4.0 g of NaCl. Calculate the number of moles of NaCl

Construye una estrofa donde precises el número de sílabas métricas y el tipo de rima.Ayuda mis panas lo nececitoooooo

Fill in the gap: Camels drink a little _ no water

How many moles of Se are there in a sample of Se that contains 5.33×1024 atoms?

What are the implications of the designated list of recognized subjects being revoked?

factorise fully to the following 6x+4

Jakea has 45 candies. She needs at least 72 candles. The candies she wants are sold in boxes of 9 What is the least number of boxes that Jakea needs to buy

what do you mean by internet ?write it's important