You have a weak acid concentration of 0.120 M and the conjugate base concentration is 0.100 M. What is the pH of this buffer? The Ka of this weak acid is 1.24x10-8   answer is 7.83, please explain how with steps

Q: Which of the following solution pairs can be used as buffers? (Check all that apply) □HOH/KOH…

A: Buffer solution contains weak acid or weak base and corresponding salt of strong base or strong…

Q: A buffer solution is composed of 7.50 mol of acid and 2.75 mol of the conjugate base. If the pK, of…

A: The pH of a buffer is determined using the Henderson-Hasselbalch equation, pH = pKa + log{[A-]/[HA]}

Q: Which of the following aqueous solutions are good buffer systems? U 0.16 M sodium hydroxide + 0.21 M…

A: A buffer system is what resists the change in pH value on addition of any acid or base in small…

Q: (a) Calculate the pH of a buffer solution containing 0.40 mole of KF and 0.50 mol of HF in 1.50…

A: pH of buffer solution is calculated using Henderson–Hasselbalch equation, amount of strong acid HCl…

Q: 6. What is the pH at the equivalence point? Why is the pH not = 7.00? Explain

A: The question is based on the concept of titration. we are titrating an acid with a base. we need to…

Q: Question attached

A: Using tabulated values of Ka and Kb calculate the pH of the following solutions :

Q: Calculate the pH of a buffer solution containing 0.30 mole of KF and 0.40 mol of HF in 1.0 liter…

A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid…

Q: Which of the following solution(s) would be a buffer? Select all that apply. 100.0 mL of a 0.100 M…

A: A buffer solution is an aqueous solution containing a mixture of weak acid and its salt or conjugate…

Q: Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.16 M…

A: Here we are required to find the solution which would form buffer system

Q: Sodium Hydroxide is a strong base, so adding any extra amount will dramatically increase the pH,…

A: When acid and base is titrated, indicator is used which is pH sensitive. In this question asked that…

Q: Please explain in 3 sentences only.  What is a buffer capacity? What are the factors that affect…

A: Buffer capacity is the capacity of a buffer solution to resist the change of pH after addition of…

Q: Be sure to answer all parts.   What is the [H3O+] and the pH of a buffer that consists of 0.45 M…

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Q: For each of the following, determine a. what the buffer range is (use Ka or Kb tables) b. what the…

A: Answer: Solution of weak acid and its conjugate base or weak base and its conjugate acid will act…

Q: Is possible to make a buffer pH 4 at 1mM using methanesulfonic acid and sodium tartrate? Please…

A: To explain: Is it possible to make a buffer pH 4 at 1mM using methanesulfonic acid and sodium…

Q: How many moles of sodium acetate should be added to 375 ml of 0.3 M acetic acid in order to prepare…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: If a buffer solution contains 2.1 M acetic acid and 2.7 M sodium acetate, what is the pH of the…

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Q: The pK, value for H2S is 7.00. What mole ratio of NaHS to H2S is needed to prepare a buffer with a…

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Q: Within what pH range is a HOCl – NaOCl buffer effective? Answer: pH 6.5 – pH 8.5 (Please explain.…

A: Solutions                                  Given that Within what pH range is a HOCl – NaOCl…

Q: Given the following info about a 1L solution determine the final pH of the buffer after the addition…

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Q: 1. The composition of a buffer relies upon both a weak acid and its conjugate base being present in…

A: If one has only weak acid available say CH3COOH then react this acid with commonly available base…

Q: Which acid(s) could you use to make a buffer with pH = 10.20 (choose all that would work) a. NH4+…

A: Given :Different type of acid.  To find : Acids that are used to make butter with PH = 10.20…

Q: Review fopie Relerences Use the References to access important values if needed for this question.…

A: pH of a buffer solution is calculated from the Henderson-Hasslebalch equation pH = pKa…

Q: You need to prepare an acetate buffer of pH 5.27 from a 0.895 M acetic acid solution and a 2.71 M…

A: Let volume of KOH = V Liter  Molarity of KOH = 2.71 M  So,  Number of moles of KOH = Molarity of KOH…

Q: In the two cases below, identify the solution that provides the highest buffer capacity if you want…

A: Buffer capacity: Buffer capacity (β) is a unitless number specified as the number of moles of acid…

Q: Of the following, check the one(s) whose aqueous solutions may act as a buffer. NHẠC2H3O2 HNO3 with…

A: Buffer solution is a combination of a weak acid and its conjugate base or a weak base and its…

Q: A buffer solution is made of 0.120 M of benzoic acid and 0.200 M sodium benzoate. What's the pH of…

A: Given: Concentration of benzoic acid(Acid) = 0.120 M Concentration of sodium benzoate (salt) = 0.200…

Q: Part B For the best system, calculate the ratio of the masses of the buffer components required to…

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Q: A beaker with 105 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total…

A: Strong acid and Weak acid: Acid which can completely dissociate into there constituents ions are…

Q: Can someone explain part B for me I don't understand why [HX]>[X-].

A: Given information: The pKa for weak acid = 4.5 The pH of the buffer solution = 4.3

Q: Given the following info about a 1L solution determine the final pH of the buffer after the addition…

A: We have to calculate the final pH of buffer solution.

Q: Of the following, check the one(s) whose aqueous solutions may act as a buffer. NH4C2H3O2 HNO3 with…

A: Buffer solution is defined as a solution that oppose changes in pH while adding little amount of…

Q: Is the buffer effective? Explain your answer (3-5 sentences)

A: In this question, we will discuss about a buffer solution is effective or not.  You can see…

Q: You perform a reaction in your 1 liter of buffer that absorbs 0.01 moles of protons from the…

A: A buffer is a solution of a weak acid and its conjugate base or a weak base and its conjugate acid.…

Q: Some contact lens solutions use boric acid buffers to resist pH change. Over what pH range does…

A: Some contact lens solutions use boric acid buffers to resist pH change.

Q: Determine the Kb of an unknown weak base if the pH value is 9.73 when 0.750 M of the weak base and…

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Q: Which of these statements is true? (a) If you add strong acidor base to a buffer, the pH will never…

A: The statement (a) is false as the addition of strong acid or base to a buffer changes the pH. The…

Q: What HF needs to be added to 0.20 M NaF to obtain a buffer solution with a pH of 4.6?

A: The given solution is buffer. It contains weak acid, HF and its respective conjugate base.  The…

Q: I am extremely confused as to the logic behind these conceptual/theory problems can you please add a…

A: Any solution having weak acid+conjugate salt reflects that solution is "acidic buffer". Acidic…

Q: Which of the following aqueous solutions are good buffer systems? O 0.30 M ammonium bromide + 0.34 M…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: A buffer contains 0.14 mol of propionic acid ( C2H;COOH) and 0.15 mol of sodium propionate (…

A: Given: 0.14 mol of propinoic acid 0.15 mol of sodium propionate Volume is 1.20 L 0.02 mol of NaOH

Q: Calculate the pH of a buffer solution that has concentrations of 0.25 M of [NH4]+ and 0.50 M of NH3.…

A: Given the concentration of weak acid, [NH4+(aq)] = 0.25 M concentration of conjugate base, [NH3(aq)]…

Q: An acetate buffer has a ph of 5, how much will be ionized? how much will be unionized? how much of…

A: Let the concentration of acetic acid =C mol/L Degree of dissociation of acetic acid  =α the pH of…

Q: What is the pH at which a buffer composed of NH3 and NH4+ would be most effective at resisting pH…

A: A solution which is composed of weak acid or weak base and its conjugate acid or base pair and has…

Q: The pK, value for H2S is 7.00. What mole ratio of KHS to H2S is needed to prepare a buffer with a pH…

A: The pH of the buffer solution can be evaluated using Henderson-Hasselbalch equation , which is…

Q: A buffer solution is prepared that is 0.78 M HCN and 0.14 M NaCN. What is the pH of the solution?…

A: Ka (HCN) =  4.9 × 10-10  HCN = 0.78 MNaCN = CN- = 0.14 MpH = To be determined

Q: An aqueous solution contains 0.477 M ammonia (NH3). How many mL of 0.394 M perchloric acid would…

A: In the given question we have to calculate the volume of perchloric acid in the Solution to prepare…

Q: calculate the pH at different stages of the titration using the appropriate chemical equation &…

A: Since you have asked a question with multiple subparts, we will answer first 3 subparts for you. In…

Q: A buffer solution made from HCN and KCN has a pH of 9.18 . If pK, for HCN is 9.40 , [CN ] [HCN] what…

A: Ans

Q: Calculate the molar solubility of ZnCO3 in a solution buffered to a pH of 6.50. (This problem…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.