I am studying for ACS and have trouble understanding how to rank molecules in decreasing or increasing solubility in water...
I know the rules of which molecules are insoluable...But how do you rank them in which is least or most soluble.
The question in the acs included
In which set are the substances arranged in order of decreasing solubility in water?
(A) Al(OH)3 > Mg(OH)2 > NaOH
(B) BaSO4 > CaSO4 > MgSO4
(C) CaCO3 > NaHCO3 > Na2CO3
(D) AgCl > AgBr > AgI
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
there isn't straight forward to know the solubility of ionic compounds... you can use the size of the ions to a degree.
The best (and only real way without numerical values) is to know the solubility tables of these common ions and point out inconsistencies in the options. That eliminates A) and C)
From there we can use the size of the ions, the larger the ion (e.g. \(I^- ~vs~ F^-\)) the less soluble a compound will be - this has to do with the solvation spheres and enthalpy.
so i think the only one is D)
you could look at this for some insight https://en.wikipedia.org/wiki/Solubility_table
Yah, the answer is D. I just had trouble understanding why it is.
Not the answer you are looking for? Search for more explanations.
I remember it had something to do with polarity? is that true?
sure it does, but i think it's more accurately explained by solvation. water molecules have completely envelop the ions and shield their charge sufficiently in order to solvate (dissolve) them, the larger the ion (ionic radius), the more water molecules necessary.
there's tons of literature on this, you can look it up on google