sergiom2860 sergiom2860

21-11-2017
Chemistry

contestada

Calculate the ph of a solution that is 0.26 m in hf and 0.12 m in naf.

Respuesta :

meerkat18 meerkat18

01-12-2017

When a mixture consists of a weak acid, such as HF, and its corresponding salt, NaF, this is an acid buffer. So, we can use the equation as written below:

pH = pKa + log(salt/acid)

For HF, the pKa = 3.17

Thus,
pH = 3.17 + log(0.12/0.26)
pH = 2.83

Answer Link

Otras preguntas

Round 38.47 to the one decimal place??

Where does 5/6 go on a number line

why were roads significant to the roman republic and ancient cultures and religions of the same time period

Fiona spent $13.70 to travel across the city in a taxi. It cost her $3.25 to get the taxi and $2.75 each mile she traveled. Write an equation to find m the tot

You heat a piece of iron from 200 to 400 K What happens to the atom's energy of random motion

what is the solution of 7x+21=21

I am homeschooled and am in 7th grade can someone please get answers to the pattern and rules unit test 7th grade please

Within a period, an increase in atomic number is usually accompanied by A. a decrease in atomic radius and an increase in electronegativity. B. an increase in a

Colin is buying dirt to fill a garden bed that is a 9 ft by 16 ft rectangle. If he wants to fill it to a depth of 4in., how many cubic yards of dirt does he nee

How do I solve 4x + 3y=0 & 2x + y = -2 using substitution