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Ch.16 - Acid-Base Equilibria

Chapter 16, Problem 95d

Identify the Lewis acid and Lewis base among the reactants in each of the following reactions: (d) HIO1lq2 + NH2-1lq2 Δ NH31lq2 + IO-1lq2(lq denotes liquid ammonia as solvent)

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Hello everyone. So in this video we're looking at this reaction right here and we're trying to identify the lewis acid and Lewis base among the reactant. So that's going to be our starting materials on the left side of our equilibrium era. Alright, so let's go ahead and refresh our memory of what a lewis acid and lewis bases. So by definition our lewis acid is going to be our electron paris sectors. As for our louis space, that's going to be our electron pair donors. So we can go ahead and draw out the lewis dot structure to clearly see it visually. However, we can also use our knowledge given the definitions and just background of chemistry to go ahead and find our lewis acid and Lewis space. So we can see here that we have our H B R and we have our p H two minus. So one thing that I recognize really quickly is our Hbr that's one of our known six strong acids. And of course that means this has to be our lewis acid. But let's say I don't have that list memorized and I want to go ahead and look at this one right here. It's the only one with the charge we have a neutral molecule and a negatively charged molecule. If we have this negative here, this means that this is going to be very electron dance. It's gonna go wanna go ahead and give up some of his electrons. This just means that it will donate or share electrons never donate electrons. That fits our very definition of a Lewis base. And just by default, then the other, the only other reactant is going to be our acid because we have to have a lewis acid and louis space. Right, So here is our Lewis base. Here is our Lewis acid. And to write this more formally, Our final answer is that our Lewis acid, it's going to be our h b R and the Lewis space. It's going to be our PH two negative. And this, right here is going to be my final answer for this problem.
Related Practice
Textbook Question

Indicate whether each of the following statements is true or false. For each statement that is false, correct the statement to make it true. (a) In general, the acidity of binary acids increases from left to right in a given row of the periodic table. (b) In a series of acids that have the same central atom, acid strength increases with the number of hydrogen atoms bonded to the central atom. (c) Hydrotelluric acid 1H2Te2 is a stronger acid than H2S because Te is more electronegative than S.

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Textbook Question

Indicate whether each of the following statements is true or false. For each statement that is false, correct the statement to make it true. (a) Acid strength in a series of H¬A molecules increases with increasing size of A. (b) For acids of the same general structure but differing electronegativities of the central atoms, acid strength decreases with increasing electronegativity of the central atom. (c) The strongest acid known is HF because fluorine is the most electronegative element.

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Textbook Question
The fluoride ion reacts with water to produce HF. (c) Is fluoride acting as a Lewis acid or as a Lewis base when reacting with water?
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Textbook Question

Identify the Lewis acid and Lewis base in each of the following reactions: (b) FeBr31s2 + Br-1aq2 Δ FeBr4-1aq2

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Textbook Question

Which member of each pair produces the more acidic aqueous solution: (b) CuCl or Cu1NO322

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Textbook Question

Indicate whether each of the following statements is correct or incorrect. (c) Conjugate acids of weak bases produce more acidic solutions than conjugate acids of strong bases.

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