If the Ka of a weak acid is 4.89 x 10-4, then what would the pH of a buffer system be if equal amounts with equal concentrations of the anion and acid forms were mixed together?   A.  3.31 B.  7.62 C.  10.7 D.  Not enough information has been given to solve this problem.

Q: Write a balanced equation for the neutralization of hydrobromic acid with potassium hydroxide.

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Q: 5. In a titration identify the key difference between the end and equivalence points: a. There is…

A: End point and equivalence points are very important in a titration.

Q: 39 Which of the following acid-base titrations initially forms a buffer?

A: 39- A buffer solution is defined as an aqueous solution consisting of a mixture of a weak acid (WA)…

Q: A buffer is a solution that contains both an acid and a base. How can we prevent the acid and base…

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Q: Which of these solutions make a buffer system? Look up each formula, then decide. a. potassium…

A: A buffer solution can be explained as the solution that can prevent the change in the pH value.

Q: buffer solution having a pH of 3.50? [K«(HF) = 7.1 x 10] (MN&F = 41.99 g/mol) A. 0.89 g В. 7.1 g C.…

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Q: To make a common phosphate buffer using potassium hydrogen phosphate and potassium dihydrogen…

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

Q: The pH of a buffer that contains 1.100 M NH3 and 1.300 M NH4+ is 9.17. What would be the new pH if a…

A: Given,  Volume of the buffer = 400 mL  Molarity of weak base, NH3 = 1.100 M  Molarity of conjugate…

Q: Which of the following mixtures will result in a buffer solution? a. 0.1 M NH, and 0.1 M CUOH b. 0.1…

A: Buffer is a solution that resist the change in pH. Buffer is formed by a weak acid and its conjugate…

Q: What volumes of 0.200 M HNO2 and 0.200 M NaNO2 are required to make 500. mL of a buffer solution…

A:

Q: An analytical chemist is titrating 206.5 mL of a 0.9600M solution of cyanic acid (HCNO) with a…

A: Given-  Volume of HCNO= 206.5 mL  Concentration of HCNO= 0.9600M Concentration of KOH=1.100M Volume…

Q: 2. Define buffer capacity. 3. If you had a 1.0 M acetic acid/acetate buffer and a 0.1 M acetic…

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

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: A recipe for a particular buffer calls for 14.2 g anhydrous sodium phosphate (M.W. 141.96) per 1…

A: The buffer needs 14.2 g of anhydrous sodium phosphate per 1 liter of solution.

Q: 5. Use YOUR stock of 0.50 M sodium acetate and your stock of 0.50 M acetic acid to make each of the…

A: A buffer solution is capable of resisting major changes in pH and hence is employed in reaction…

Q: A buffer is prepared using 10.00 mL of 3.00 M acetic acid and 20.00 mL of 1,50 M sodium acetate.…

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

Q: (a) Which of the following mixtures are buffer solutions? a. 1.0 M HF +0.50 M HCI b. 0.10 M HCN +…

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Q: Which of the following is the best choice for a buffer system?   a. a solution of hydrochloric acid…

A: Answer: Buffer system is the type of solution that resists the change in its pH on adding small…

Q: A buffer solution contains 0.398 M KH₂PO4 and 0.355 M Na₂HPO4 If 0.0248 moles of hydrochloric acid…

A: It is based on the concept of buffer.Here we are required to find the pH of the solution when 0.0248…

Q: which of the following weak acids would be the best to use to make buffer solution of pH=7.2?

A: A buffer solution is a solution whose pH does not change by adding small amount of acid and base.…

Q: Which statement about buffers is true?   a. A buffer does not change pH on the addition of a…

A: Buffer is the solution which resist the change in pH , when we add acid or base in the buffer…

Q: What is the molar concentration of acetic acid? b. What is the molar concentration of the sodium…

A: Acetic acid is a weak acid and it dissociates as: CH3COOHaq⇋CH3COO-aq+H+aq The expression for Ka is:…

Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a) To…

Q: dissolving 1.22 grams benzoic acid (pKa = 4.20, Molar Mass, μ = 122 g/mol) and 2.88 grams sodium…

A: Given, Mass of acid = 1.22 g Mole = 1.22/122   = 0.01 mol Mass of salt = 2.88 g Mole = 2.88/144   =…

Q: Which of the following pairs of substances will make aqueous buffer solutions (consider the products…

A: Acidic buffer: A mixture of weak acid and salt of same acid with a strong base Basic buffer: A…

Q: A 12.7 mL solution of 0.100 mol L-1 HOCI is titrated using 0.150 mol L-1 NaOH. What is the pH of the…

A:

Q: Which of the following aqueous solutions are good buffer systems? A. 0.29 M ammonia + 0.31 M…

A: A buffer is a solution mixture that can resist any change in pH of the solution on addition of an…

Q: 1) For the following solutions circle those that would be considered buffer solutions NH4Cl and…

A: Given, The buffer solutions in  NH4Cl and NaCl :        HCN and NaCN    :  NaH2PO4 and Na2HPO4 :…

Q: What is the pH of a buffer made by combining 45.0 mL of 0.30 M nitrous acid and 20.0 mL of 0.35 M…

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Q: A buffer solution contains 0.455 M ammonium chloride and 0.214 M ammonia. If 0.0538 moles of sodium…

A: The volume of the buffer solution = The concentration of the ammonium chloride solution The…

Q: The AIDS drug zalcitabine (C₁0H₁2NO4N) is a weak base and has a Kb of 1.58x10-10, One normal adult…

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Q: 16. What is buffer capacity? a. The maximum amount of H+ or OH- ions that a buffer can absorb…

A:

Q: 7. A 100.0 mL sample of 0.10 M benzoic acid is titrated with 0.20 M KOH. Determine the pH of the…

A: The pH of the solution at neutralisation point is 7.9245

Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a) To…

Q: Which of the following can be mixed together in water to produce a buffer solution? Choose all…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: 7. Which pH is consistent with the following results? Indicator Color result Thymol blue yellow…

A:

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 a solution consisting of equimolar solutions of a weak acid and a salt of its…

Q: A)6.85 The best conjugate pair for this pH would be:    If you were going to add NaOH solution as…

A: To make buffer solution of a given pH, we should use that acid- conjugate base pair whose pKa value…

Q: Question 3 For each compound on the left, which compound on the right can be combined with it to…

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Q: If the Ka of a weak acid is 4.89 x 10-4, then what would the pH of a buffer system be if equal…

A:

Q: Which of the following constitute a buffer? A. NH3 and KNO3 B. HCN & NaCN C. HF & NaCl…

A: The NH3 form buffer when it mixed with NH4X (where X- ion comes from strong acid). The HF form…

Q: Describe/ explain what a buffer is/ how it works. Do Not use the words "acid" or "base" or any…

A:

Q: After 0.552 g of ascorbic acid (Vitamin C) is dissolved in 20 mL of water, methyl orange indicator…

A: Given data,Mass of ascorbic acid=0.552gVolume of water=20mLMolarity of KOH=0.1103MVolume of…

Q: the reagent potassium phosphate tribasic trihydrate (K3PO4*3H2O) and 1.1M HCl and 1.1 M NaOH. you…

A: Given: The reagent potassium phosphate tribasic trihydrate (K3PO4*3H2O) and 1.1M HCl and 1.1 M NaOH.…

Q: Which of the following best describes Buffers?   A. Buffers are weak acid and conjugate base pairs…

A: Buffer solution :- A solution which resists the change in its pH value by the addition of small…

Q: Which of the following solutions is a buffer system?

A: In the given question we have to identify buffer system by the condition of buffer formation. we…

Q: What is the pH of a buffer made by combining 45.0 mL of 0.34 M nitrous acid and 60.0 mL of 0.48 M…

A: Answer

Q: 7. A 100.0 mL sample of 0.10 M benzoic acid is titrated with 0.20 M KOH. Determine the pH of the…

A: Given, Volume of benzoic acid = 100.0 mL Concentration of benzoic acid  = 0.1 M Volume of KOH = 0.2…

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.