Question
Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka) HFHzSO4HzSO3
Classify each acid as strong or weak. If the acid is weak, write an expression for the acid ionization constant (Ka) HF HzSO4 HzSO3


Answers
Classify each acid as strong or weak. If the acid is weak, write an
expression for the acid ionization constant (Ka).
a. HF b. HCHO2 c. H2SO4 d. H2CO3
In this question, we have to classify each acid a strong or ring. We also have to write an expression for acid dissociation constant K A. For the weak acid. First as it is Hydrofluoric acid, That's it, weak acid now, H F plus water produces F minus plus is trio plus and G. E. For this one is concentration of if minus times concentration of his trio plus, divided by the concentration of the acid ate it. Then the second one is for me, gassy, A C W H. This is the weak acid formic acid plus water. Yeah, produces for me down. A C double A minus plus is 30 plus and K A. For this one is concentration of hC W minus times concentration of a studio plus, divided by concentration of A C double +08. See 1980s to a support sanctuary Cassie, there's a strong acid and the last one is carbonic acid. Mhm. is to see all three. There's a weak acid carbonic acid plus water, A c 03 minus bicarbonate down plus ace trio plus and key A. For this one is h c 03 minus concentration times concentration of s t o plus, divided by concentration of h two c 03.
So for this question, were asked to class by each of these athletes. The strong or weak if they're classified as weak, were then asteroid, an expression for their acid ionization contents constant. So the first thing that we're going to do is look at her first acid hydrofluoric acid, a chaw. This is a weak acid. Since it's week, we're going to need your right out on acid ionization constants. So the first thing we're going to do is write out the equation for the ionization of the facet. So we'll consider a chop in the water and this will donate a proton. So we'll wind up with totally charged flooring and each 30 plus and we consider this is Equus. This is a liquid and then the two eye on set form as a quips. Then we can write our acid ionization constant from that, so we know that K A is equivalent to the products over the re actives. So we have the concentration of Florrie over H through times H three, a plus divided by HR, and we're going to be ignoring water in this case because water is liquid, so it's not counted in the ionization constants. Next we have HC h ch or two, which is formic acid. Formic acid is also a week asset. So we're going to need to write on ionization constants. So we're gonna react with water again, and you're gonna wind up forming age three old plus and C H 02 minus. So here we'll have Our k is equal to each three old plus times C H o to minus divided by each ch Otago and then next will look apart. See three of H two s A for sulfuric acid. So this is a strong acid, so it's going to completely eye and his eye's completely ionized. So there is no kay needed for this. And then finally, we have carbonic acid htc 03 So this this week. So it's going to react partially with water and donate a eye on to form a thrill plus and each to seo three fine us. And then when we right on a k a, our ionization constants gonna be equivalent to H zero plus times H to feel three minus divided by htc 03
So here we are given different acids. So in our first case we have nitric acid nitric acid is known to be one of the strong assets. In our second case we have hydrochloric acid and hydrochloric acid is also known to be one of the strong acids and part C. Were given hydroponic acid, which is also known to be a strong acid. So the first three completely dissociated solution and in part D we have hydro sulfuric acid. However, with hydro sulfuric acid, this is a weak acid since it doesn't dissociate completely in solution. So H two s and three and the same goes for made associate into H plus and the conjugate base. So the acid ionization constant would be the concentration rage plus times the concentration of conjugate base over the concentration of the weak acid. And this gives our final answers.
Okay, so we're asked to cost by if each acid or adjusted as a strong or weak acid. Okay, let's see. We have a GED and a three. I would see that a Channel three here is a strong acid for a deal. We also see that it is a strong ethic, and we have HPR well, but see, it's not on this table here, but if you call, um, it is a strong acid based on the book, and lastly, we have H two s 03 which is like here, which is a weak acid.