I can't figure this out, and I think I am just overlooking a fundamental principle. This is the question.
What is the solubility of marble (CaCO3) in normal rain water with a pH of 5.60?
Any help would be greatly appreciated! Thanks!
2007-04-03 07:44:25 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I've considered the common ion effect, and I know it has ties with equilibrium, but the next question I am to answer is the same as this, but the pH is 4.22, and the mult. choice answers are all different.
2007-04-03 07:58:14 · update #1
Use nonparieil's link and work from there - you should be able to figure the answer to the problem for there it is basically set up for you!
2007-04-03 08:04:48 · answer #1 · answered by Dr Dave P 7 · 0⤊ 1⤋
while a answer is asserted to be saturated, it ability that the answer is retaining the utmost volume of solute it could carry. as a manner to respond to your question: specific, it is the way you hit upon solubility in g/L. The Ksp is named the solubility product consistent. it truly is a ratio of the multiplication of the respective concentrations of the products shaped from dissolving the solute to the concentration of the solute. If the solute is a organic sturdy, liquid, or gas (which ability its concentration can no longer get replaced), then its concentration will receive as a million (or cohesion) interior the ratio. NiCl2 (s) --> Ni(2+) (aq) + 2 Cl(-) (aq) for this reason, Ksp = [Ni(2+)] x [Cl(-a million)]^2. Moles NiCl2 = 2.a million g/129.596 g/mol = 0.0.5 mol Moles Ni(2+) = 0.0.5 mol NiCl2 x (a million mol Ni(2+)/a million mol NiCl2) = 0.0.5 mol Moles Cl(-) = 0.0.5 mol NiCl2 x (2 mol Cl(-)/a million mol NiCl2) = 0.030 mol for this reason, at equilibrium, [Ni(2+)] = 0.0.5 mol/0.0.5 L = 3 M & [Cl(-)] = 0.030 mol/0.0.5 L = 6 M. as a result, Ksp = 3 M x (6 M)^2 = 108 M^3.
2016-11-25 23:36:18 · answer #2 · answered by ? 4 · 0⤊ 0⤋
From the pH, work out [H+].
Now look up Ka2 for carbonic acid - the equilibrium [H+] x [(CO3)2-]. From that you can work out the concentration of carbonate ion.
2007-04-03 07:59:37 · answer #3 · answered by Gervald F 7 · 0⤊ 0⤋
Think about the common-ion effect.
Carbonic acid and carbonate?????
It's more of an equilibrium constant question really.
2007-04-03 07:48:50 · answer #4 · answered by Modern Major General 7 · 0⤊ 0⤋
http://web.grinnell.edu/individuals/marzluff/watepset.html
It's an equilibrium question.
2007-04-03 07:51:59 · answer #5 · answered by Anonymous · 1⤊ 2⤋
I have no clue. =[
2007-04-03 07:54:05 · answer #6 · answered by monilesa 1 · 0⤊ 1⤋