Determine if each compound is more soluble in acidic solution
tha...

Question

Determine if each compound is more soluble in acidic solution
than it is in pure water. Explain.
c. AgCl

Accepted Answer

Hey everyone. So today we're being asked to determine if C. A. H. C. 032 or calcium bicarbonate will be more soluble in pure water or in an acidic solution. So the way I'd like to do this is by determining whether a solution of dissolved calcium bicarbonate and water will be polar meaning acidic. Basic or if it'll be non polar if it'll be neutral. So let's write that out. If we had calcium bicarbonate, H. c. 0. 3 2 and it was dissolved in water it would associate into two distinct ions. It would associate into C. A. Two plus ions calcium two plus and it would associate into two bicarbonate ions. C. 03 minus. Let me write that a little nicer C. O oops C. 03 minus. And based on whether these are neutral, basic or acidic and solution each of these separate ions. We can determine if the entire dissolved solution will be basic, acidic or neutral. Let's take a look at Calcium. 1st calcium is a main group medal similar to sodium or aluminum or iron or copper. And as a general rule of thumb if the charge is greater than three plus or if it is three plus or more sorry is greater than or equal to charge. Then the solution will be acidic or that ion will be acidic. Sorry But C. A. has a charge of two plus and since two plus is less than three plus then this means See a two plus will be neutral. He is neutral when it's dissolved. So this, sorry this is neutral. Now let's take a look at bicarbonate. So bicarbonate is actually the conjugate base. H. c. three is the conjugate base of the weak acid by carbon and acid weak acid. Sorry carbonic acid eight C. 03 sorry H. Two C. 03. And the conjugate base of a weak acid will be basic is basic. Keep in mind therefore that we will have eight C. 03 minus which is basic. And See a two plus which is neutral when counseling bicarbonate is dissolved in water. So it'll be a basic solution. Thus since the solution itself will be basic that means that the basic an eye on the basic and ion Will be more soluble in an acidic solution than a neutral one. More soluble in acidic solutions. And this is because it can actually react and form um sorry due to the presence of hydro ni um ions that are present in an acidic solution, it can actually react and form water and carbon dioxide which you wouldn't see in appear solution in a neutral solution. Let me just write that out. It'll form issue three minus plus H plus Which will be present in six in an acidic solution And you will get c. 0. 2 and water. So because of this the basic N. N. Will be more soluble in an acidic solution which means calcium bicarbonate itself will be more soluble in the acidic solution. I hope this helps. And I look forward to seeing you on the next one.

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