5

Assuming Ihe pKa values of valine are 2.3 and 8.4, calculale the pH of a IM solulion of valine Equations and constants: pH log [H+] pKa log Ka Ka = [H*JIAT / [HA] ...

Question

Assuming Ihe pKa values of valine are 2.3 and 8.4, calculale the pH of a IM solulion of valine Equations and constants: pH log [H+] pKa log Ka Ka = [H*JIAT / [HA] Part 1: Calculate the appropriate Ka of glycine t0 solve this problem: (2 points) KaQUESTION 36Part 2: calculate [H+] [H+]points)QUESTION 37(2 points)Part 3. Calculate the pH pH =

Assuming Ihe pKa values of valine are 2.3 and 8.4, calculale the pH of a IM solulion of valine Equations and constants: pH log [H+] pKa log Ka Ka = [H*JIAT / [HA] Part 1: Calculate the appropriate Ka of glycine t0 solve this problem: (2 points) Ka QUESTION 36 Part 2: calculate [H+] [H+] points) QUESTION 37 (2 points) Part 3. Calculate the pH pH =



Answers

Write the major equilibrium that is established in a solution of glycine at $\mathrm{pH}=2$ and at $\mathrm{pH}=10$. The $\mathrm{p} K_{\mathrm{a}}$ of the $\mathrm{COOH}$ group is $2.3$ and the $\mathrm{p} K_{\mathrm{a}}$ of the $\mathrm{NH}_{3}{ }^{+}$ group is $9.6 .$ Determine the relative concentrations of each member of the relevant conjugate acid-base pair at $\mathrm{pH}=2$ and $\mathrm{pH}=10 .$ Calculate the $\mathrm{pH}$ at which glycine is neutral.

So starting with Henderson Black equation. We have be age. I'm sorry. We have a k A. Equals negative law off a equals negative. Log off. 6.3. Multiply 10 days to point. Negative way gives us 7.20 now calculating the pH from the given formula. So let us take the value off pH on organization degree, Sobh will be one too. 34 and five. Ionization degree will be 0.0 202 For ph to it will be 0.0 548 the next 0.1477 0.3 916 And lastly, we have 0.0 99 seventh. So now we draw a graph for Ph. Verses organization degree. So we take beach on XX is on on a vacation degree on the Y axis, so ph will be zero. We have to care. Four on six on the organization will be in cream mint in agreement at 0.0 2000. So so for the first one we have here point, the second one will be slight slightly up. The third one, the fourth one on the fifth one. So the graph will be like this. No moving on to part B off the question If P H equals P G a. So solving the black equation again th equals B k a negative off Norc one by eight Negative one Not so it's not a It's Alfa No. One by l phone minus one because BK a minus BK a So knock one by l foe minus one equals evil. Therefore, Alfa Value will be 0.5. But see, But see will be if p h equals 6.0, then pH equals peek a negative off lock one by Alfa minus one substituting the values we have 6.0 equals 7.20 negative off lock one by Alfa minus one Solving for log one by Alfa minus one We have lock one minus Alfa by Alfa equals 6.20 Then log off one minus cell phone minus Norc Alfa equals 1.20 Therefore the value off Alfa will be 0.59

So the Henderson Hazel dedication is B H is equal to peek a plus love off base concentration over the acid concentration. So if he know the concentration of the base consolation off its conjugated acid and the peak value, we can easily find the pH of the solution. But in case off be's and its conjugated ass, it we can have the key beep Hello off the base. So and we have to our calculate the pick a hello from this cave evil, which is very simple. First, we have to convert this baby toe pick a B, which is simply the negative. Log off this Gaby and again ah Piquet designation. We can pick it and P k b, which is pick a place became a sea of forty and our peak physical to fourteen minus b k b. So there. So we can easily, ah get the equal in value of Piquet for a base and his contraband acid solution and just replacing the value here and knowing the Constitution of the base and its contribution is it we can calculate the beach of their solution

Let's look at a buffer that contains 0.45 Moeller formic acid and 0.63 molars permit. We can calculate the um, pH and concentration of hydrogen ions using the Anderson Hustle back equation. And just as a side note, uh, if you have something like sodium for mate, it's going to completely dissociate in water into for me. And so do you mind. So any concentration of sodium for mate, for example, 6.3, is going to imply an equal concentration of, um, for me, you know what's so for the pH? We have the PKK of former gas it so we can just plug that in and and that to the log of the concentration of the country, get base, which is for made in this case, 0.63 molars over the concentration of weak acid before my gas. In this case, so 0.45 Miller Ph is then 3.74 0.146 one. This is the 3.88 61 which one thinking about significant figures is just 3.9, and that's our final pH. Never confuse this page to sell for the concentration of hydro in your minds. Thanks. The pH equals the negative long of the concentration of Honduran reminds. Rearranging this equation we get the concentration equals 10 to the negative. PH. In our case, this is 10 to the negative 3.9 which one considering significant figures is 1.2 times 10 to the negative for Muller.

So in this problem, we were asked to I'll find or calculate the pH off the solutions there was provided in our problem twenty seven. So here we have two solutions toe acid based solutions with certain concentrations ofthe acid and base. And then we have to use the Henderson Hasselbeck equation to calculate the pH off East its solution. So let's start with ah, the first one where we're given a solution off syrup when to Mueller zero point to Mueller h C h O, and then zero point one five moeller in a C h or two. So here, this is our acid, and this is our base. So we're given on the acid concentration and the base concentration. So we just have to apply the Henderson Historic equation when the ph of this solution And we know that Henderson has silver key question is be a judge is equal to B A k a glass log off, um, based concentration over acid concentration. So now, so here we need to. So we know the base concentration and the acid concentration. And here we need to know the peaky Eva Lo so and the k f l o for this. Ah, Okay. Sit. Formalize, HC. Each photo, which is a farm. A cassette. So the the cave Hello for this formic acid. Here is one point eight times ten to the power miners for so as you know, that R b Kiev always basically the negative log off this cave. Hello. So take the negative log off. Um, this one point eight times two to the power minus four. And then I am and the law, all of our base concentration, which is zero point one five over our acid concentration, which is zero point two zero. And if we just solve this equation here will see that we'll find a value off three point six one. So this is a ph of this solution. And then in the next solution, we have zero point one six smaller ammonia and we have zero plan to to Mueller in each force. He ill So here. This is our base. And this is our passage. No, again, we just write down the Henderson Hasselbeck equation, and his speech is a good photo peek a boo plus log off base concentration off our acid concentration. So in this case, we again we know our base concentration acid concentration. We need to know or care Velo. So the peak ambi vellum for Ah, this ammonia is four point seven five. So we know that there's a relation we didn't peek and we could be which is basically a big A plus B game B Is it called a fourteen? So that means if we just substructure this became Viv Hello from forty and we'll have the p k f hello, which is, um, nine point two five. So we just play or plug and of Valiant went to five here. Plus they take the log off. Caesar based concentration is sirrah point one six and arrested Concentration is zero point two two And if we just solved decoration, we'll find our love nine point one one, which is the B h off this solution


Similar Solved Questions

5 answers
Certain liquid has vapor pressure of 92.0 Torr at 23.0 FC and 290.0 Torr at 45.0 'C.Calculate the value of 4H vap for this liquidNumberAHA,40.876kJ / molCalculate the normal boiling point of this Iiquid:Number
certain liquid has vapor pressure of 92.0 Torr at 23.0 FC and 290.0 Torr at 45.0 'C. Calculate the value of 4H vap for this liquid Number AHA, 40.876 kJ / mol Calculate the normal boiling point of this Iiquid: Number...
5 answers
10 12Solution:10 12work: your Show "Sluja} buipuodsajJo) 341 UaaMlaq both patterns at 0. Describe the relationship "add 4" to a pattern with the rule "add 2." Start Use a graph to compare a pattern with the rulePoints on @ graph? Alocote 3 Pattern; You Uje How do
10 12 Solution: 10 12 work: your Show "Sluja} buipuodsajJo) 341 UaaMlaq both patterns at 0. Describe the relationship "add 4" to a pattern with the rule "add 2." Start Use a graph to compare a pattern with the rule Points on @ graph? Alocote 3 Pattern; You Uje How do...
5 answers
Find the exact value of the expression sin (a ~ B) given that cos & =with a in quadrant II, and sin p =with P in quadrant IV.sin (& - P) =| Simplify your answer: Type an exact answer Using radicals as needed
Find the exact value of the expression sin (a ~ B) given that cos & = with a in quadrant II, and sin p = with P in quadrant IV. sin (& - P) =| Simplify your answer: Type an exact answer Using radicals as needed...
5 answers
Problem 8.6. Prove or give counterexample: Let {An : n €z-} and {B, :neri be twO indexed collections of sets. If An € Bn for all n € z+ [hen(Recall that A € B means strict inclusion; that is,A € B and _ B.)
Problem 8.6. Prove or give counterexample: Let {An : n €z-} and {B, :neri be twO indexed collections of sets. If An € Bn for all n € z+ [hen (Recall that A € B means strict inclusion; that is,A € B and _ B.)...
5 answers
1 What are the products of the following reaction? Be sure to include all ofthe productsHzSO4OHOH22. What is the nucleophile in Question 12
1 What are the products of the following reaction? Be sure to include all ofthe products HzSO4 OH OH 2 2. What is the nucleophile in Question 12...
5 answers
24 4 2 1 < 1 f g(z) = { then g (1) is 2t + 1 m > 11232
24 4 2 1 < 1 f g(z) = { then g (1) is 2t + 1 m > 1 1 2 3 2...
5 answers
Graph the function.x2-+,ifx< -[ G(x) 0,if-Na*a x2++,ifl<X
Graph the function. x2-+,ifx< -[ G(x) 0,if-Na*a x2++,ifl<X...
5 answers
Given P(A)=0.3 and P(B)=0.4
Given P(A)=0.3 and P(B)=0.4...
2 answers
Cons Der (lie follawlng Watrix [~ : Aertorm te [Dr opetatiota aokve Lhe JuouknledHullahPulteekWrle U1L Unm @^ Mice{ne ALeFe sysrm ol tinea Fquallot Splataolution ncthous KahicCatnaaneFEeetern DledetHalelNced Help?Le)
Cons Der (lie follawlng Watrix [~ : Aertorm te [Dr opetatiota aokve Lhe Juouknled Hullah Pulteek Wrle U1L Unm @^ Mice {ne ALe Fe sysrm ol tinea Fquallot Splat aolution ncthous Kahic Catnaane FEeet ern Dledet Halel Nced Help? Le)...
5 answers
Write chemical equations to illustrate all primary reaction steps that can occur between a base such as ethoxide ion and a carbonyl compound such as acetaldehyde. Explain why the carbonyl carbon is not deprotonated to any appreciable extent in this system.
Write chemical equations to illustrate all primary reaction steps that can occur between a base such as ethoxide ion and a carbonyl compound such as acetaldehyde. Explain why the carbonyl carbon is not deprotonated to any appreciable extent in this system....
5 answers
Kkzh o/ the fcllowing elements the smallest lonlzatlon energy?Il elements Is the 1 electronegatlv
Kkzh o/ the fcllowing elements the smallest lonlzatlon energy? Il elements Is the 1 electronegatlv...
5 answers
3. In reference to the third postulate of Niels Bohr; discuss how energy can be emitted or absorbed in hydrogen atom_ (Include the following vocabularies: Principal quantum number; ground state and excited state of an atom): Use equations and diagrams to support your answer_
3. In reference to the third postulate of Niels Bohr; discuss how energy can be emitted or absorbed in hydrogen atom_ (Include the following vocabularies: Principal quantum number; ground state and excited state of an atom): Use equations and diagrams to support your answer_...
5 answers
A limestone building stone measuring 52.0 cm long by 31 cm wide by 16 cm thick is 91 percent calcite with the rest of its volume being empty pore space.What is the mass of this building stone in kg? What would be itsmass if it were marble? (Recrystallization of metamorphismeliminates the pore space. Assume SGcalcite = 2.7 g/cm3.)
A limestone building stone measuring 52.0 cm long by 31 cm wide by 16 cm thick is 91 percent calcite with the rest of its volume being empty pore space. What is the mass of this building stone in kg? What would be its mass if it were marble? (Recrystallization of metamorphism eliminates the ...
5 answers
Question 20Ableck of ms; M= 50kg 0 4 horizontal frictionless surface 1 sccond blok ML connecled by cord Over $ massless. frietionlexs pulley shown in Ihe Figure below: A s the hanging blok of Iss Muss M Jccelerates lu the right Whte I fall . Uie block = the HuETude of the jecelerlion of the blck of mus; M?Ftic tionks Mue
Question 20 Ableck of ms; M= 50kg 0 4 horizontal frictionless surface 1 sccond blok ML connecled by cord Over $ massless. frietionlexs pulley shown in Ihe Figure below: A s the hanging blok of Iss Muss M Jccelerates lu the right Whte I fall . Uie block = the HuETude of the jecelerlion of the blck of...
5 answers
Calculate the volume of a 16.7 gsample of benzene.Volume = mL
Calculate the volume of a 16.7 g sample of benzene. Volume = mL...
5 answers
Using the reactions below, determine the enthalpy of the following reaction:2CHA(g) ~ CzHs(g) + Hz(g)AH, -285.8k]Hz(g) + {02(9) HzO(g) CHa(g) + 202(g) 2Hz0(9) + COz(g) CzHs(g) + Zoz(g) - 3HzO(g) + 2CO2(g)AHz -890.4]AH3 -1559.9k]
Using the reactions below, determine the enthalpy of the following reaction: 2CHA(g) ~ CzHs(g) + Hz(g) AH, -285.8k] Hz(g) + {02(9) HzO(g) CHa(g) + 202(g) 2Hz0(9) + COz(g) CzHs(g) + Zoz(g) - 3HzO(g) + 2CO2(g) AHz -890.4] AH3 -1559.9k]...
5 answers
Find the radius of convergence_of the series_n (In(n))Find the interval, I, of convergence of the series_ (Enter your answer using interval notation:)
Find the radius of convergence_ of the series_ n (In(n)) Find the interval, I, of convergence of the series_ (Enter your answer using interval notation:)...
5 answers
101213LL14Moving to another question will save this responseQuestion 13Yn + 2 Vn M n = 1Determine whether the above series iS convergent or divergent (Hint: Use the conjugate) Write your complete solution (with all explanations) on a paper and upload the scan. (You should use "Adobe Scan' on your cellphone just like the midterm) Attach File Browse My Computer Browse Content CollectionMoving to another question will save this response.
10 12 13 LL 14 Moving to another question will save this response Question 13 Yn + 2 Vn M n = 1 Determine whether the above series iS convergent or divergent (Hint: Use the conjugate) Write your complete solution (with all explanations) on a paper and upload the scan. (You should use "Adobe Sca...

-- 0.066240--