Use Le Châtelier's principle to predict whether the solubility of BaF2 will increase, decrease, or remain the same on addition of each of the following substances. (a) HCl

Video transcript

Hey everyone we're asked based on the shot Leslie's principle, what will happen to the solid ability of silver cyanide when per caloric acid is added to the solution first. Let's go ahead and write out our reactions here. So we have our silver cyanide which is in its solid state. This will dissociate into our silver ion plus our cyanide ion. Now we know that our silver ion is a transition metal with a plus one charge. So this is going to be a neutral ion. Now we know that our cyanide ion is from the weak acid hydrogen cyanide. So our cyanide ion is a basic ion. Looking at our per caloric acid, we know that this is a strong acid. So this will dissociate into our protons plus our per chlorate ion. So when we react our proton with our cyanide ion, this will form our hydrogen cyanide. So looking at these reactions, we can see that the concentration of our cyanide ion will decrease and that's because our cyanide ion will react with our proton to form hydrogen cyanide. So because the concentration of our cyanide will decrease, our equilibrium will shift to the right in order to compensate for that decrease. So more silver cyanide will dissolve. So our final answer here is going to be that the solid ability of silver cyanide will increase. Now I hope this made sense. And let us know if you have any questions