The pKa value of CH3COOH/CH3COO- is 4.75. At what pH value are the concentration of CH3COO- and CH3COOH the same?

Q: pKa

A: According to the question, we need to determine the conjugate acid of the molecule and then…

Q: A 25g sample of CH3COONa is completely dissolved in 500ml of water and CH3COOH has an acid…

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Q: 2. Calculate [A]/ [HA] ratio of phosphoric acid species presents in blood at pH=7.4. Identify…

A: Henderson Hasselbach equation is used in the preparation of a buffer.  pH = pKa + log [base][acid]…

Q: The base protonation constant K, of 1-H-imidazole (C,H,N,) is 9.0 × 10. Calculate the pH of a 1.2 M…

A: Given Values: The protonation constant Kb of 1-H-imidazole is 9*10-8 The concentration of the…

Q: The pKa of acetic acid (CH3COOH) is 4.76. If a solution of acetic acid is at a pH of 6.56, the ratio…

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Q: Look up the theoretical value for the Ka of CH3COOH to calculate what the pH should have been for…

A: 5% CH3COOH means 5 g Acetic acid Present with 95 g sodium Acetate then - Moles of Acetic acid =…

Q: Assume that you have two unlabeled bottles, one of which contains phenol (pKa = 9.9) and one of…

A: Acid is a substance which is capable of donating a proton or capable of accepting lone pair of…

Q: To what category of basicity does CrO42- belong? Select one: a. strongly or very strongly basic b.…

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Q: Propose the relative ratio and chemical structures of the acid form and conjugate base of the…

A: Henderson Hasselbalch equation: pH=pKa+log[base][acid]

Q: 5. At 25°C, calculate the molar H3O+ and OH-1 concentrations of the following: a. 0.0300 M C6H5COOH

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Benozic acid (C6H5COOH) has a pKa of 4.20. What is the ratio of the acid to its conjugate acid at a…

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Q: Solution of glucose (concentration 1g/L) is diluted 1 : 10 and then 1 : 5. What is its  final…

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: What is the concentration of the lactate ion in a 1.00 M lactic acid solution given that the Ka of…

A: Given : Initial concentration of lactic acid i.e HC3H5O3 = 1.00 M Since HCH3H5O3 is a weak…

Q: You have 0.500 L of an 0.250 M acetate buffer solution (i.e. [HC2H;O2] + [C2H3O2] = 0.250 M) at pH…

A: pH is used to determine the concentration of hydronium ion.

Q: The pH of a 0.10 MM solution of formic acid (HCO2H) is 2.38. Calculate Ka for formic acid.…

A: We have 0.10 M of formic acid whose pH is given we have to predict the Ka and Pka.

Q: Calculate 3OH-4 and pH for (a) 1.5 * 10-3M Sr1OH22,

A: A pH is a unit to the acidity of the solution. The expression to calculate pH are as follows:…

Q: The pKp of 4-hydroxypyridine is 10.80 at 25°C. What is the pH of a 0.0250M solution? Round to two…

A: Please have a look on the solution below:

Q: What is the pH of a solution

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Q: State the fact below ? An acid can be deprotonated by the conjugate base of any acid havinga higher…

A: The formula for pka is shown below.

Q: Calculate the pH of a 0.25M solution of formate ion (HCOO-) at 250 C.  The pKa for formic acid…

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Q: For each value of Ka, calculate the corresponding value of pKa. Which compound is the stronger acid?…

A: pKa of any acid can be calculated as: pKa=-logKa Ka is dissociation constant of an acid. Larger the…

Q: What is the pH of a solution containing 0.30 M CH₃COONa and 0.10 M CH₃COOH? The Ka of CH₃COOH is 1.8…

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Q: At 25°C, what is the hydronium ion concentration ina. 0.200 M chloroacetic acid? b. 0.0200 M…

A: When the equilibrium is attained, the determination of species concentration can be done by ICE…

Q: How many moles of LiCH3CH2CH2CO2 must be mixed with 0.1315 mole of CH3CH2CH2CO2H and diluted to…

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Q: Show the dissociation of HCIO4 .

A: HClO4 is  the  strong acids in water, it completely dissociates into H+ and ClO4– .

Q: The pH of a 1.5 M solution of 4-chlorobutanoic acid (HC H,0,Cl) is measured to be 2.17. 4 6. 2.…

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Q: What molar ratio of HPO42-to H3PO4- in solution would produce a pH of 7.0? Phosphoric acid (H3PO4 ),…

A: Given pH= 7.0 pKa = 2.14 , pKa = 6.86, pKa = 12.4 (1) H3PO4 ⇌H3PO4- (2) H3PO4-  ⇌ HPO42- (3) HPO42-…

Q: LiF has a pKsp of 2.77. HF has a pKa of 3.17. LiF is dissolved at 0.250 F after addition of strong…

A: Formality is the number of formula mass in gram present per litre of a solution. Formula mass of…

Q: HO он OH O The predominate form of benzene-1,2,3-tricarboxylic acid cannot be determined from the…

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Q: What is the dominant ionic form of phosphoric acid in a solution at pH 6.0?

A: Phosphoric acid is a triprotic acid with three dissociable protons and their pka are given as,

Q: 0.100M solution of monoprotic weak acid has a pH of 3.00. What is the pKa of this acid?

A: Let , weak monoprotic acid = HA  pH = 3.00  [HA] = 0.100 M

Q: When 2.0 x 10-2 mole of nicotinic acid (a monoprotic acid) is dissolved in 350. mL of water, the pH…

A: Nicotine is a weak monoprotic acid so it dissociated in less amount. So we can denotes it by HA .

Q: Calculate the ratio [CH3COOH]/[NaCH3COO] that gives a solution with pH = 5.00? Hint: Rearrange the…

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Q: Estimate the pH and percentage of dissociation of 0.010 M CH3CH(OH)COOH(aq) (lactic acid). pKa of…

A: For a weak acid:                                     HA           =            A-        +       H+…

Q: The Kb for ethylamine (C2H5NH2) is 5.6 x 10-4. What is the pH of a 0.020 M solution of ethaylamine?

A: The reaction is –              C2H5NH2 + H2O↔C2H5NH3+ + OH-I                 0.02…

Q: The base protonation constant K, of allantoin (C,H,N;03NH,) is 9.12 × 10 °. Calculate the pH of a…

A: Given:

Q: The pKaa of the conjugate acid of guanidine is 13.6, making it one of the strongest neutral organic…

A: The conjugate acid of the guanidine is as shown above which has the presence of three nitrogen group…

Q: The pKa of the conjugate acid of guanidine is 13.6, making it one of thestrongest neutral organic…

A: Given: The given conjugate acid is guanidine. pKa=13.6

Q: You have 0.500 L of an 0.250 M acetate buffer solution (i.e. [HC2H;O2] + [C2H3O2¯] = 0.250 M) at pH…

A: Given data is: pH of buffer = 3.5 Let Concentration of [HC2H3O2]  be x M and concentration of…

Q: Many drugs are either weak acids or weak bases. Acetaminophen is a weak base, the acid form of which…

A: The ratio of protonated to deprotonated ([HA]/[A-]) can be calculated by using the…

Q: The pH of 2-methylpropanoic acid is greater than that of 2-chloropropanoic acid. True or false

A: Detail description is given below

Q: How do I use the numbers given to find the masses in grams?

A: Preparation of a buffer solutionBuffer is a solution that can resist any change in its pH by the…

Q: Consider the molecule, pentanoic acid which has a pKa of 4.81: H3C OH  Draw the predominate…

A: Given compound: Pentanoic acid pKa = 4.81

Q: 8 (a) Define in words the following: (i) Ka (ii) pKa (b) Calculate the pH of 0.0005 mol dm3 ethanoic…

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Q: Propionic acid, a common constituent of anaerobic digesters, dissolves in water and dissociates into…

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Q: Calculate the formate ion concentration and pH of a solution that is 0.050 M in formic acid (НСООН,…

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Q: Indicate whether an alcohol (ROH) with a pKa value of 15 has more charged or more neutral molecules…

A: An acidic substance is the substance that can give H+ ions. They are corrosive and sour in nature.…

Q: a. If the pH at one-half the first and second equivalence points of a dibasic acid is 3.20 and 7.45,…

A: At half equivalence point (mid point) , the number of moles of acid (HA) is equal to its conjugate…

Q: The pK, of a particular weak acid is 5.17. What is the pH of the weak acid solution when exactly…

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Q: In which one of the following solutions will acetic acid have the greatest percent ionization? A)…

A: Common ion effect: To a weak acid/base solution, when a solution of common ion is added, the…

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.