You decide to put your growing knowledge of chemistry to profit by making and selling boutique soaps that are ultra mild and have an almost neutral pH. What is the pH of your best liquid soap made from a fatty acid (HA) that has a pKa value of 2.0? The concentration of the active ingredient, a fatty acid salt (NaA), is 1.0 M NaA.

Q: A student titrated 50.0mL of a 0.10 M solution of a certain weak acid with NaOH(aq), what is the…

A: Step 1: From the given graph, it is clear that pH range 6 to 10 is found at 25.0 mL of NaOH added.…

Q: What is the pKa of a 0.2M solution of an unknown monoprotic acid that has a pH of 4.2?

A: We have find out Pka of solution of an unknown monoprotic acid that has a pH of 4.2

Q: You have a 0.5 L solution that is 30 mM citric acid and 0.02 M sodium citrate. What is the pH of…

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Q: What is the hydronium ion concentration and pH of a 0.20 M solution of hypochlorous acid, Ka = 3.5 x…

A: Since you have posted multiple questions with multiple sub parts,we will provide the solution only…

Q: What is the pH of a buffer solution that contains 0.180 M of a fictitious base and 0.135 M of its…

A: A mixture of weak acid and its conjugate ion with strong base forms an acidic buffer solution. A…

Q: An analytical chemist is titrating 50.2 mL of a 0.5100M solution of trimethylamine ((CH3)N) with a…

A: The question is based on the titrations.  we are titrating a weak base with a strong acid. we need…

Q: Calculate the pH of the solution that results when 35.0 mL of 0.20 M weak base aniline, C6H5NH2, is…

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Q: Sodium phosphate has 3 ionizable groups, with pKa’s of 2.2, 7.2, and 12.3. You have 250 mL of a 200…

A: A solution containing a weak acid and its conjugate base at any proportion forms a buffer. This…

Q: MISSED THIS? Watch KCV: Buffers; Read Section 18.2. You can click on the Review link to access the…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.It is…

Q: Strong base is dissolved in 665 mL of 0.600 M weak acid (K₁ = 4.09 × 10-5) to make a buffer with a…

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Q: A chemist generates the titration curve shown by slowly adding 0.1 M sodium hydroxide (NaOH) to 25…

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Q: A solution (50.00 mL) of citric acid (a weak acid with concentration 0.0950 M and Ka = 1.8 × 10−5)…

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Q: What is the pH of a buffer that results when 5.46 mole of H3PO4 is mixed with 2.97 mole of NaOH and…

A: · Moles of H3PO4 = 5.46 mol· Moles NaOH = 2.97 mol· Volume of solution = 1.00 L· Ka1 = 7.5 × 10–3

Q: You are conducting a biochemical experiment with an enzyme that has optimal activity at pH = 6.50.…

A: Buffers are solutions that are used in experiments to resist the change in pH. Carbonic acid is a…

Q: Strong base is dissolved in 715 mL of 0.400 M weak acid (K, = 4.75 x 10-5) to make a buffer with a…

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Q: In an experiment, Sadhvi and her lab partner, Nandini, make a buffer containing hydrazoic acid, HN3,…

A: Buffer solution is prepared, when an strong base is added into weak acid solution then resulting…

Q: An analytical chemist is titrating 176.4 mL of a 0.2800M solution of trimethylamine ((CH3),N) with a…

A: Molarity of trimethylamine = 0.2800 mol/LMolarity of HNO3 = 0.7000 mol/LpKb = 4.19

Q: What is the pH of a buffer solution that contains 0.305 M of a fictitious weak acid and 0.227 M of…

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Q: Consider the titration of 17.50 mL of 0.459 M potassium propanoate, CH3CH2CO2K, with 0.107 M HNO3.…

A: Millimoles of propanoic acid form =0.107*39.38=4 .21 Millimoles of salt remain=17.50*0.459 -4.21…

Q: Acetic acid’s pKa is 4.75 and nitrous acid’s pKa is 3.16. If you made one buffer of equal parts…

A: Given: PKa of acetic acid = 4.75 PKa of nitrous acid = 3.16

Q: Calculate the volume, in liters, of 1.617 M KOH that must be added to a 0.111 L solution containing…

A: The relationship between pH and pKa can be represented as follows-            ......1Here, [HA] is…

Q: the leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and…

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Q: What is the ratio of the concentration of acetic acid and acetate ions required to prepare a buffer…

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Q: What is the ratio of the concentration of acetic acid and acetate ions required to prepare a buffer…

A: The given data contains, pH = 5.12 pKa of acetic acid = 4.81

Q: Which of the following is true of a buffer solution that contains equivalent amounts of acid and…

A: buffer solution that contains equivalent amounts of acid and conjugate base means [Conjugate base ]…

Q: If a solution of dissolved acid has pH = 2.5 and the pka for the acid chemical is K 4.3 and you…

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Q: Which of the following compounds could be used to create a buffer with a pH of 9.00? ammonia, Kb =…

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Q: 4. What is the pH of a solution made by mixing HCl and 0.083 M aniline (C6HSNH2), where the…

A: Concentration of weak base = 0.083M Concentration of salt = 0.05M Ka = 4.6 x 10-10

Q: -10 What A chemistry graduate student is given 125. mL of a 1.70 M hydrocyanic acid (HCN) solution.…

A: when weak acid HCN ionises in water

Q: Which solution is closest to the pKa? Calculate the pH of the solutions and the change in pH after…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Given the following buffer systems, the acetate buffer system would be the best choice to create a…

A: Answer: A buffer solution is the type of solution that resist the change in its pH on adding small…

Q: -5 Calculate the pH of the buffer system made up of 0.19 M NH3 and 0.46 M NH4Cl. The K of NH3 is 1.8…

A: The question is based on the concept of pH of the solution.  It is defined as a negative logarithm…

Q: 2. A solution containing 0.50 M sugar substitute and 0.50 M of its sodium salt has a pH of 11.68. a.…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…

Q: A buffer solution is composed of 1.923 g of KH,PO4 and 4.699 g of Na HPO4. (K, for dihydrogen…

A: Given that : Mass of KH2PO4=1.923 gMass of Na2HPO4=4.699 gKa for dihydrogen phsophate=6.2×10-8The…

Q: An analytical chemist is titrating 69.7 mL of a 0.2500M solution of nitrous acid (HNO₂) with a…

A: The objective of this question is to calculate the pH of the acid solution after a certain volume of…

Q: A solution containing a monoprotic weak acid (HA) that is 8.09% dissociated was found to have a pH…

A: A solution contains monoprotic weak acid (HA) that dissociate 8.09%  And PH = 1.92  [A-] = ? at…

Q: Histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2, as shown below (His = imidazole…

A: The three pKa values shows that there are 3 replaceable hydrogens in the molecule(represented as…

Q: Acetic acid’s pKa is 4.75 and nitrous acid’s pKa is 3.16. If you made one buffer of equal parts…

A: Given: pKa of acetic acid = 4.75  pKa of nitrous acid = 3.16  And both the buffers have an equal…

Q: A buffer solution contains a weak acid, HA, and its conjugate base, A. The buffer solution has a pH…

A: Given: The pH of the buffer solution of the weak acid, HA = 5.56 The pKa of HA = 5.00 We have to…

Q: You made a pH 9.0 buffer solution at 25° C by mixing NaOH and histidine (HisH) to give a solution…

A: The buffer considered has pH = 9.00Constituents of the buffer: NaOH and HistidineTotal concentration…

Q: Strong base is dissolved in 715 mL of 0.600 M weak acid (K₁ = 4.12 × 10-5) to make a buffer with a…

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.