bargejailen3938 bargejailen3938
  • 02-10-2019
  • Chemistry
contestada

Calculate the pH of a solution created by placing 2.0 grams of yttrium hydroxide, Y(OH)3, in 2.0 L of H2O. Ksp for Y(OH)3 is 6.0x10-24.

Respuesta :

gbustamantegarcia054 gbustamantegarcia054
  • 07-10-2019

Answer:

pH = 8.314

Explanation:

  • Y(OH)3(s) ↔ Y+  +  3OH-

equil:   S               S         3S

∴ Ksp = [ Y+ ] * [ OH- ]³ = 6.0 E-24

⇒ 6.0 E-24 = ( S )*( 3S )³

⇒ 6.0 E-24 = 27S∧4

⇒ 2.22 E-25 = S∧4

⇒ ( 2.22 E-25 )∧(1/4) = S

⇒ S = 6.866 E-7 M

⇒ [ OH- ] = 3*S =2.06 E-6 M

⇒ pOH = - Log [ OH- ]

⇒ pOH = - Log ( 2.06 E-6 )

⇒ pOH = 5.686

∴ pH = 14 - pOH

⇒ pH = 8.314

Answer Link

Otras preguntas

The perimeter of a rectangle is 68 inches. Its width is 16 inches. What is its length? A 16 inches B 18 inches C 20 inches D 22 inches
Try These questions out and I’ll give you brainliest
2. If you went 40.5 miles in 1.5 hours, what is your rate of travel?
Can anyone give me the answers for this worksheet pls! I would very much appreciate it
Please help me I want to get a perfect score
At the grocery store, almonds ore on soe for $3.8 per pound What is the price of 4.5pounds??
The resistivity of blood is related to its hematocrit, the volume fraction of red blood cells in the blood. A commonly used equation relating the hematocrit h t
State the properties of the Normal Probability Distribution in own word.
What is 1 divided by 1/6
can someone give me a sentence example using action verbs describing horses running