FOLLOW-UP PROBLEM 18.10 Pyridine (C,H,N, see margin) serves as a solvent and base in many organic syntheses. It has a pK, of 8.77. What is the pH of 0.10 M pyridine?

Q: At pH 3.0, what percentage (in %) of lactic acid is in its deprotonated form? Hint: The pKa of…

A: Given, pH of lactic acid is 3.0. Its pKa value is 3.86. What percentage of lactic acid is in its…

Q: The base B has pKb  5.00. (a) What is the value of pKa for the acid BH? (b) At what pH is [BH] …

A: Handerson Hasselbalch equation –  Buffer solution is mixture of weak acid and its conjugate base.…

Q: solution of formic acid is 3.0% dissociated at 25.0 °C. What is the original conce

A: Weak acid does not dissociate completely , hence its dissociation can be written as…

Q: Hypochlorous acid (HOCI) is the main disinfecting form of "active chlorine" or bleach. a. Using its…

A: a)   HOCl dissociates in aqueous solutions as per the following reaction:   HOCl↔H++OCl-

Q: What fraction of ethane-1,2-dithiol is in the form H,A, HA and A? at a pH = 8.00?

A:

Q: In the  starred section of the given problem, how does the oxygen get a H.

A: Alkene can be converted to epoxide using peroxyacids and this epoxide can be hydrolyzed to get diol.

Q: Problem Solving. A solution of formic acid is 3.0% dissociated at 25.0 °C. What is the original…

A: Dissociated % = 3.0% Temperature = 25 °C Original Concentration of formic acid solution =? Ka = 1.8…

Q: Problem Solving. Solve the following problems, use GRESA format in answering. 1. In a 0.1000 M…

A:

Q: Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D…

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Q: d The concluctivity of a 0.05 M solution of acetic crid of 12°c is 4-4X10" si'cm'. A of act ecetic…

A:

Q: pH = 7.15 Use the following table to predict the best acid/ base pair for the desired pH/pOH values…

A: Given :  pH = 7.15 For acidic buffer : pH = pKa + log ([conjugate base]/[acid]) For basic buffer :…

Q: 40 mg of sodium hydroxide is required to saponity Igm sample, this means that (MW of NaOH= 40…

A: Saponification value  represents the number of milligrams of potassium hydroxide required to…

Q: Why is the color violet/blue at pH near 7? Answer in 1 sentence.

A: Answer -   The colours from yellow to red indicate an acidic solution, colours blue to violet…

Q: The base-dissociation constant of ethylamine (C2H5NH2) is 6.4 × 10-4 at 25.0 °C. The [H+] in a 1.6 ×…

A: [H+ ] [ OH-]   = 10-14 P H  + POH  =14 [ OH-] =10-14 /[H+ ] [H+ ]= 10-14              [ OH-]

Q: Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D…

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Q: Treatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction.…

A:

Q: Compare compounds I and Il and choose which statement below fits best. vs. column I compound II A…

A: I solved only one question. Remaining repost

Q: Problem Solving. Solve the following problems, use GRESA format in answering. 1. In a 0.1000 M…

A: In the question , Acetic acid which is mono basic acid,realeses one H+ per molecule. If the…

Q: The Ka value for benzoic acid (C6H5COOH) is 6.3×10^−5 and for phenol (C6H5OH) the value of Ka is…

A: The dissociation constant of benzoic acid (C6H5COOH) and phenol (C6H5OH) can be written as follows:

Q: The polyprotic acid, H3X, has acid dissociation constants Ka1 = 1.3×10-1, Ka2 = 6.5×10-4, and Ka3 =…

A: For the acid, H3X H3X + H2O → H2X- + H3O+ and for this reaction Ka1=[H3O+] [H2X-][H3X] H2X- + H2O →…

Q: A weak base (B) has a pKµ value of 6.08. At what pH is [BH*] = [B]? pH = What is the predominant…

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Q: At 25°C, the Ka for a certain monoprotic base B is 2.5x10-5. What will be the Kb value for the given…

A: Given :- Ka = 2.5 × 10-5  To determine :- Kb at 25°C

Q: Show calculations for how to make 1L of 10X Running Buffer (recipe below). Also explain how to…

A: Buffer is a solution that tends to resists change in pH when some acid or base is added to it. It…

Q: Explain why the mixture is buffered at pH 6 to 9?

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Q: a Following are three organic acids and the pK, of each: MOPS, 7.20; TRIS, 8.30; and PIPES, 6.80.…

A: pKa can be expressed as the negative logarithm of Ka.i.e.                       pKa = -logKa…

Q: Consider two acids: HCO,H (formic acid, pK, = 3.8) and CgH;C0,H (benzoic acid, pK, = 4.2). Which…

A: Formic acid have highest Ka value .

Q: pH = 10.31 Use the following table to predict the best acid/ base pair for the desired pH/pOH…

A: Given : To predict the best acid/ base pair for the desired pH value of 10.31.

Q: compound With chemical formol a cqH10 0 Resolts of chemical te st for C4HI0O +|- chemical Test…

A:

Q: Identify the Ke expression for the following reaction: Zn+2 (aq) + 4 NH3 (aq) 4 Zn(NH3)4*2 (aq)…

A: The equilibrium constant for a reaction is expressed in terms of the ratio of the concentration of…

Q: FOLLOW-UP PROBLEM 18.2 Calculate [H,O*] in a solution that has [OH¯] : 6.7X10 2 M at 25°C. Is the…

A: At 25°C  Ionic product of water , Kw = 10-14  Kw = [H3O+] [OH-] [H3O+] = KwOH- =10-146.7 × 10-2 =…

Q: Calculate the fraction of the triprotic acid in each of its forms at pH 5.13.

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Q: Compare the pH of propionic acid and nitric acid when they are dissolved in water at a concentration…

A: According to the Arrhenius concept, any substance which produces hydrogen ion in its aqueous…

Q: A 130.00 mL solution of 0.00335 M A3B4 is added to a 160.00 mL solution of 0.00105 M C3D4. What is…

A: The volume of 0.00335 M A3B4 is 130.00 mL. The molarity of 160.00 mL solution of C3D4 is 0.00105 M.

Q: VII. Questions 1. Compare the relative acidity strength of phenol, acetic acid and alcohol as…

A: Given : Phenol, acetic acid and alcohol. To Find : Relative acidity strength Solution : Acidic…

Q: L of HCI(g) at 37°C and 89.6

A: Dear student this question is related to molarity concept. Please note that the statement shown by…

Q: A "generic" diprotic acid has pK,'s of 4.85 and 6.21. Find K»i and K12 for the fully-deprotonated…

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Q: Give the hydrosen Concentration of a with pH = 12.57? PH ion Solution

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Q: For acetic acid, justify the acidity values ​​in the three media below: - solvent: water (pka =…

A: Acidity of acetic is most in water and least in dioxane. Polar solvent increases the acidity the…

Q: How to prepare 10% of sodium iodide in acetic acid

A: How to prepare 10% of sodium iodide in acetic acid is given below.

Q: Point out where is the endpoint of the reaction as shown below. Determine what indicator other than…

A: Equivalence point is where there is sudden change in pH

Q: 3. According to the Evan's pKa table, phenol has a pka of 9.95. p-Nitro and m-nitrophenol have pKas…

A: Ka is the acid dissociation constant. pKa is defined as the negative logarithm to base 10 of Ka.…

Q: The pK, and pK,2 of ortho and para isomers of phthalic acid (diprotic acid) are shown below: pK pK2…

A: There are number of factors detaining the acidity of benzoic acid. These are,  1. Inductive effect…

Q: Liquid ammonia (anhydrous NH3(l)) is often used as a solvent. Like water, ammonia undergoes…

A: The auto ionisation reaction given is, => 2 NH3 (l) -------> NH4+ (aq) + NH2- (aq)…

Q: What is the correct order of descreasing acidity of the following  ClCH2CO2H FCH2CH2NH2 HI…

A: Acidity and Basicity order

Q: Criven a Sample of but tripratic acid was litrated with aqueous NaoH. Find the how many motes of…

A:

Q: B+C hot acidifiod pemanganate solution 1. Hg(OAc)/THF-H;0 NES/ hv in CC D A 2. NaBH4/OH compound X…

A: A is formed by allylic bromination B and C are formed by oxidaition D is formed by…

Q: The pka values of OH group in 4-cyanophenol and 4-nitrophenol are identical BUT in the…

A:

Q: The polyprotic acid, H3X, has acid dissociation constants Kaj = 5.6x10-1, Ka2 = 2.8×10-3, and Kaz =…

A: The dissociation constant of acid is expressed as Ka. It is the measure of acidity of a weak acid.…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.