4. The molar ratio between a weak acid and its base conjugate was (3:2). Calculate the Ka of the weak acid if the pH of the buffer was 6.0.

Q: Explain what happens when acid is added to a buffer and the pH does not change very much.

A: A buffer is a solution that can resists changes in pH upon adding of a little amount of strong acid…

Q: Suppose a buffer solution contains Z moles of NaOH and 0.025 moles of its salt. The pH of the…

A: Given: Moles of salt = 0.025 mol pH of solution = 9.034 Kb  = 1.8 × 10-5

Q: What is an acid–base indicator? Define the equivalence (stoichiometric) point and the end point of a…

A: An acid-base indicator is either a weak acid or weak base that exhibits a colour change as the…

Q: What is the pH of a hydrocyanic acid/sodium cyanide buffer in which the concentration of the weak…

A: we have to calculate pH of the given buffer solution

Q: Calculate the pH of a buffer solution that is 0.339 M in NH3 (ammonia) and 0.143 M in NH4CI. pH =

A: Here we are required to find the pH of the buffer solution.

Q: What must be the minimum concentration of hypoiodous acid in 1.00L buffer solution of a pH=10.72…

A:

Q: What is the approximate pH at the equivalence point?

A: Equivalence point is point in titration at which the amount of titrant added is just enough to…

Q: What is the pH of a buffer solution that contains 20.0mL of 0.10M H2CO3 and 50.0mL of 0.10M NaHCO3?

A: We would use Henderson Hasselbalch equation to calculate the pH of buffer solution.

Q: buffer

A:

Q: The pK, value for HF is 3.14. Would a buffer prepared from HF and NaF with a pH of 1.14 be…

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

Q: What will happen to the pH of a buffer if i increase the acid/base ratio by 100? Calculate it.

A:

Q: An acid has a Ka= 1x10^-6 at what pH would this acid and it's corresponding salt make a good buffer?

A: Acidic buffer is mixture of weak acid and its conjugate base. Whereas basic buffer is mixture of…

Q: A solution made from 100 mL of 0.1 M NaOH and 100 mL of 0.2 M HC2H3O2 will act as a buffer solution.…

A:

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.404 M nitrous acid…

A:

Q: What is the general rule in preparing a buffer with a high buffering capacity?

A: In the preparation of buffer (acidic buffer), a weak acid, such as acetic acid, and its salts, such…

Q: A buffer solution is 0.080 M in lactic acid (Ka = 1.8 × 10−4) and 0.070 M in sodium lactate. The pH…

A: This is actually a buffer mixture of weak acid (lactic acid) and it's salt(sodium lactate).…

Q: low is the assigned buffer prepared? Write your computations and encircle the amount of solute…

A: Solution: Here we have phosphate buffer solution with pKa 2.12. So from this value we can find the…

Q: Describe a buffer with a low capacity and the same buffer with a greater capacity .

A:

Q: calculate the pH of the buffer 0.15 M NH3/0.35 M NH4Cl without using the Kb value

A: Base ionization constant (Kb) of NH3 = 1.8×10-5 Conjugate acid of NH3 base is NH4+ the ionization…

Q: What are the criteria for buffer system?

A: Buffer system - - > Buffer system is defined as a solution which resist the change in pH when…

Q: If a buffer solution is 0.200 M in a weak base (Kb=7.4×10−5) and 0.450 M in its conjugate acid, what…

A: Calculate the pOH value of the given buffer solution,            pKb = - log Kb = -log (7.4 × 10-5)…

Q: What is buffer solution?give the application of buffer with proper solution.

A: To find: The definition for buffer solution Application of buffer

Q: Match each weak acid with the pH value at which it would buffer.

A: Weak acids are the acids that do not dissociate completely in aqueous solution. There exists an…

Q: Is it possible to prepare a buffer solution using a strong acid and a salt of its conjugate base?…

A: Buffers are solutions that help to nullify the changes brought in a solution in terms of pH. They…

Q: weak base/strong acid titration, the pH at equivalence point is , or equal to 7?

A: Firstly we will take a weak base and a strong acid and after titration only Acid remains which will…

Q: The maximum buffering capacity is nearest to the pKa of the buffer. Explain why?

A: A buffer solution is capable of resisting a pH change on addition of small amounts of acid or base…

Q: Explain how does a solution butanoic acid and potassium butanoate can function as a buffer solution?…

A:

Q: Importance of buffers based on your understanding. 2. Give the components of a buffer system and…

A:

Q: For biological buffer systems, buffer acids capacity is usually greater than buffer bases capacity.…

A: A biological buffer is an organic substance in our body that helps in maintaining the body at the…

Q: What must be the minimum concentration of hydrocyanic acid in 1.00L buffer solution of a pH 9.8…

A: Answer: Buffer solution is a type of solution in which on adding small quantity of acid or base, it…

Q: When is Buffer most effective?

A: Buffer- Aqueous solution containing a week acid and its conjugate base or a week base and its…

Q: hat is buffer capacity, and when it is largest

A: The pH of the solution determines the concentration of H+ in the solution. A higher value of pH…

Q: What is the pH of a buffer prepared by combining 0.441 moles of trimethylamine (a weak base) with…

A: Here we are required to find the pH of buffer solution of weak base and it's salt of conjugate acid

Q: What is the pH of the solution at the equivalence point?

A: In case of titration of strong acid vs strong base At the equivalence point the acid will be…

Q: Estimate the Ka of the weak acid being titrated in this curve.

A:

Q: Calculate the pH of a buffer that is 0.210 M in NaHCO3 and 0.320 M in Na2CO3. Calculate the pH of a…

A:

Q: When the pH is below the pKa, is the buffer species more or less than 50% protonated? Explained in…

A: Given -> pH is below the pKa value.

Q: Which of the following three solutions has the largest buffer capacity? Ka values are all the same,…

A: Buffer capacity is the amount of H+ or OH- needed to change the pH of the solution by a factor of 1…

Q: What is the effect of concentration of the weak acid on pH of the buffer solution? Explain.

A:

Q: Give the chemical composition of a buffer solution and explain the buffer action with appropriate…

A: Buffer Solutions are the solutions which resists the sharp change in pH on addition of an acid or…

Q: What must be the minimum concentration of cyanoacetic acid in 1.00L buffer solution of a pH 2.43…

A: Solution                     Given that Pka = 2.45 PH = 2.43 0.086 moles HCl is added Find…

Q: What must be the minimum concentration of hypobromous acid in 1.00L buffer solution of a pH 8.02…

A:

Q: How does dilution with water affect the pH of a buffer solution?

A: The pH of a buffer solution is given by: where [A-] is the concentration of the salt and [HA] is…

Q: The capacity of buffer solution is defined as the amount of weak acid or weak base can be added…

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

Q: What is the effect of the ratio of conjugate base to acid on buffering capacity?

A: In essence buffer solutions resist changes in pH. A buffer contains appreciable amounts of a weak…

Q: Equal volumes of solutions of acids and their sodium salts are mixed to prepare a buffer. The…

A: A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution…

Q: Give the components of a buffer system and explain the requirements for a solution to be considered…

A: The question is based on the concept of buffer solution. We have to explain the concept of buffer…

Q: what is the pH?

A: Given :-  Concentration of weak acid = 0.250 M  Concentration of conjugate base = 0.450M  Ka = 5.9 ×…

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.