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Q: Chemistry - Solubility Products Ksp ( No Answer,   4 Comments )
Question  
Subject: Chemistry - Solubility Products Ksp
Category: Science > Chemistry
Asked by: medicine_man-ga
List Price: $2.50
Posted: 10 Oct 2006 18:22 PDT
Expires: 10 Oct 2006 23:36 PDT
Question ID: 772493
The solubility of magnesium carbonate, MgCO3, in aqueous solution at
25oC is 4.5 x 10^-3 mol L-1. The solubility product, Ksp, of MgCO3 at
25oC is?

Please show workings on how you acheived the answer. Cheers :)
Answer  
There is no answer at this time.

Comments  
Subject: Re: Chemistry - Solubility Products Ksp
From: dr_morph-ga on 10 Oct 2006 19:40 PDT
 
Magnesium carbonate MgCO3 6.8210-6 
http://www.ktf-split.hr/periodni/en/abc/kpt.html
Subject: Re: Chemistry - Solubility Products Ksp
From: dr_morph-ga on 10 Oct 2006 19:52 PDT
 
p.s. I think that since the Ksp is 6.82*10^-6, therefore the
solubility is the square root of 6.82*10-6, since Ksp=[Mg][CO3]. 
Therefore the solubility is not 4.5 x 10^-3, but is actually 2.6 x
10^-3
Subject: Re: Chemistry - Solubility Products Ksp
From: dr_morph-ga on 10 Oct 2006 19:56 PDT
 
however, assuming you are correct, and paying for this ;), if the
solubility is 4.5 x 10^-3, therefore [mg]=4.5 x 10^-3 and [CO3]=4.5 x
10^-3, and
Ksp=[Mg][CO3]Ksp=(4.5 x 10^-3)^2 = 2.025 X 10^-5
Subject: Re: Chemistry - Solubility Products Ksp
From: medicine_man-ga on 10 Oct 2006 23:34 PDT
 
The second answer is correct thanks for your time and effort :)

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