I'm a bit stumped on this one, could somebody help?
2007-04-13 17:33:14 · 4 answers · asked by W 1 in Science & Mathematics ➔ Chemistry
The relevant equation is
[Mg] [F]2 = Ksp
So if we have 0.0045 moles of the salt, when it dissolves, it provides 0.0045 g-ions of Mg+2 and 0.0090 g-ions of F-1. So:
[0.0045][0.0090]^2= Ksp
= 4.5x10-3 x 0.81x10-6
= 3.7 x 10-9 appx
2007-04-13 17:44:28 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
the respond would desire to be 5.a million × 10^–9. Al(OH)3 supplies out Al3+ and 3OH- as a results of fact Al3+ yields the comparable no. of mole as Al(OH)3, and 3 moles of OH- ions, so enable's make the concentration of Al3+ be X, and OH- be 3X^3 X x 3X^3 = 27X^4 = a million.8 x 10^-32 X = 5.08 x 10^-9 the concentration of Al3+ is 5.08 x 10^-9 as a results of fact 2 sig.fig. is used, the respond 5.a million x 10^-9 be taken! i'm hoping this facilitates.
2016-12-16 05:24:26 · answer #2 · answered by keetan 4 · 0⤊ 0⤋
Good Question .
Ill ask my chem teacher when i get to schoool
2007-04-13 18:08:50 · answer #3 · answered by Alyssa 2 · 0⤊ 0⤋
i hate this topic so much, its the worst
2007-04-13 17:50:38 · answer #4 · answered by tami-q 2 · 0⤊ 0⤋