chemistry

The ksp for Al(OH)3 is 3.7*-5 at 20 degrees. What is the solubility of Al(OH)3 in grams per litre?

  1. 👍 0
  2. 👎 0
  3. 👁 130
  1. I don't think Ksp is correct. Can't be that large. Also, how advanced is this class?

    1. 👍 0
    2. 👎 0
  2. That is the Ksp I was given

    1. 👍 0
    2. 👎 0
  3. This won't be the correct answer to the problem (but it is the correct answer to the problem that is posted).
    .......Al(OH)3 ==> Al^3+ + 3OH^-
    I.......solid......0.........0
    C.......solid......x.........x
    E.......solid......x.........x

    Substitute the E line into Ksp and solve for x in mols/L, then convert to grams/L.
    BTW, I think that exponent is 10^-15 and not 10^-5

    1. 👍 0
    2. 👎 0
  4. so x=6.08*10-3 and then I use the gram equivalent weight of Al(OH)3 to get grams per Litre? I got 0.474 g per litre, is the correct?

    1. 👍 0
    2. 👎 0
  5. Sorry, I may have misled you due to a typo I didn't put in. That equilibrium should have looked like this;
    .......Al(OH)3 ==> Al^3+ + 3OH^-
    I.......solid......0.........0
    C.......solid......x.........3x
    E.......solid......x.........3x

    3.7E-5 = (x)(3x)^3
    3.7E-5 = 27x^4
    x = approx 0.03 but you can do it more accurately.
    The answer comes out in mols/L, then you multiply by gram MOLECULAR weight (not gram equivalent weight) to get grams/L. I obtained approx 3 g/L but that was a quickie and you should confirm that. It is an estimate.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. AP Chemistry

    In a saturated solution of Zn(OH)2 at 25 degrees Celsius the value of [OH-] is 2.0x10^-6M. What is the value of the solubility-product constant, Ksp, for Zn(OH)2 at 25 degrees Celsius? A. 4x10^-18 B. 8x10^-18 C. 1.6x10^-17 D.

    asked by Anonymous on March 9, 2010
  2. Chemistry

    Which of the following substances has the greatest solubility in water? A. Ca(OH)2, Ksp = 6.5 × 10-6 B. Ag2SO4, Ksp = 1.5 × 10-5 C. PbI2, Ksp = 7.9 × 10-9 D. Zn(IO3)2, Ksp = 3.9 × 10-6 E. BaF2, Ksp = 1.5 × 10-6

    asked by Marco on May 2, 2010
  3. Chemistry

    I might be overthinking this but my reference books, note and the internet don't have much on this topic. What is the relationship between the solubility product constant Ksp and temperature? A. They are directly proportional B.

    asked by Sydney on June 15, 2020
  4. Chemistry

    What is the solubility of PbI2 in 0.4 M KI given the solubility constant of PbI2 is 7.1 x 10-9 a. 3.5 x 10-3 M b. 1.2 x 10-3 M c. 4.4 x 10-8 M Ksp = 7.1 x 10-9 Ksp = x * (2 * 0.4) (7.1 * 10-9)/.8 = x 8.8 x 10-9 = x ------ But this

    asked by Christine on June 13, 2018
  5. chemistry

    What pb2+ concentration should be maintained in PbNO3 to produce a solubility of 1.7×10−4 PbI2/L when PbI2 is added? I found the ksp of PbI2 to be 7.1*10(-9), divided the ksp by the solubility, and took the square root,

    asked by Anonymous on October 17, 2011
  1. Chemistry

    Which of the following compounds has the greatest molar solubility? A) AgBr, Ksp= 5.4 x 10^13 B) Ba3(PO4)2, Ksp = 3.0 x 10^-23 C) Al(OH)3, Ksp = 1.9 x 10^-33 D) MgF2, Ksp = 7.4 x 10^-11 E) Pb(OH)2, Ksp = 1.2 x 10^-15 I know the

    asked by Anon on May 6, 2018
  2. Chem 2

    what is the solubility of silver carbonate in water in 25 degrees celcius if Ksp=8.4X10-12? i don't know what to do Write the equation. Ag2CO3(s) ==> 2Ag^+ + CO3^= Ksp = (Ag^+2)(CO3^=) Let x = solubility of Ag2CO3. At

    asked by joe on April 28, 2007
  3. chemistry

    Calculate the solubility of iron(II) carbonate at 25 degrees Celsius. The Ksp of FeCO3(s) is 3.5 x 10^-11 at 25 degrees Celsius: Heres what I have done so far: 1)The balacned equation for this reaction is Fe2CO3 --> 2Fe+ + CO3-

    asked by Jessica on March 31, 2008
  4. chemistry

    what is the solubility of barium sulfate in a solution containing 0.050 M sodium selfate? The Ksp value for barium sulfate is 1.1E-10. An insoluble salt with formula MX3 has a solubility product constant written in terms of

    asked by Sarah (C) on April 23, 2011
  5. Chemistry

    The solubility of zinc oxalate is 7.9 x 10 ^-3 M at 18 degrees C. Calculate its Ksp.

    asked by Pink on November 29, 2010
  6. Chemistry URGENT

    can someone please tell me what formula's to use for the 2 following chemistry problems. 1. Calculate the solubility of potassium bromide at 23 degrees Celsius. hint. Assume that the solubility increases by an equal amount for

    asked by jazz on April 28, 2014

You can view more similar questions or ask a new question.