00:02
Okay, so the question first is compare the solubility of the silver carbonates.
00:12
So first let's write down the silver carbonates dissolving in the solution, right? it dissolve into silver plus and the carbonates 2 plus.
00:28
So when it asks about the solubility, right? so increase the solubility means for this direction that moves to the right direction, right? which means increase solubility.
00:48
However, if the decrease of the solubility, that means the reaction, right, this dissolving process reaction is moving in the leftwards.
01:04
So then we just need to look at how does those addition of the solution, right? leads to the change of the reaction directions.
01:14
The first one, silver nitrates.
01:19
So when you have the silver nitrate in the solution, right? you are adding, right, you are increased the concentration of the silver plus.
01:30
When you increase the concentration of the silver plus, actually the reaction, right, reaction for the dissolving of the silver carbonates.
01:40
Remove in the left water, direction right so that means the solubility will decrease the second one you add k2 -co3 so when you add k2 -co3 you'll actually increase the concentration of co3 to minus in the solution right and same right when you increase the concentration as co3 that means the reaction will move backwards right so the solubility will decrease.
02:16
And the fourth one, you add the ammonium for ch3 c .o.
02:26
So when you add this ammonium c .o.
02:32
The problem of that is there will be some dissociation happening, right? this would dissociate into some ammonions...