What is an acid-base buffer and what two components must be present? What important value do acid-base buffers work around and what is the pH range of a buffer?

Q: A buffer solution contains 0.239 M acetic acid and 0.420 M potasslum acetate. If 0.0243 moles of…

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Q: Describe acid-base titration. What is the equivalence point?

A: Titration is one of the most common method of qualitative analysis of substances given. It is done…

Q: How do the acid and base components of a buffer function?Why are they often a conjugate acid-base…

A: Buffer :             Mixture of a weak acid and its conjugate base or a weak base and its…

Q: An aqueous solution contains 0.370 M nitrous acid. How many mL of 0.236 M potassium hydroxide would…

A: Solution: We know nitrous acid (HNO2) is a weak acid and KOH is the strong base. So they can form…

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: 7.19 The formation of a buffer solution is an example of the common-ion effect. Explain how a buffer…

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Q: What is the effect of dilution on the pH of a buffer and the buffer’s capacity

A: pH of the buffer does not get affected by the dilution.

Q: A buffer solution contains 0.371 Mhydrocyanic acid and 0.449 M potassium cyanide. If 0.0218 moles of…

A: pH = pKa + log[salt]/[acid]

Q: A buffer solution contains 0.340 M ammonium chloride and 0.203 M ammonia. If 0.0488 moles of sodium…

A: To calculate the pH of the buffer solution after adding NaOH solution , we would first calculate the…

Q: A buffer solution contains 0.348 M ammonium chloride and 0.283 M ammonia. If 0.0144 moles of sodium…

A: Number of moles can be calculated as,

Q: An aqueous solution contains 0.464 M hypochlorous acid.How many mL of 0.364 M sodium hydroxide would…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Q: What is the effect of dilution on the pH of a buffer?

A: The pH of a buffer solution of a monoprotic acid HA can be expressed as follows-

Q: 40.0 mL of 0.20 M benzoic acid and 60.0 mL of 0.10 M sodium benzoate are combined in a large flask…

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Q: A buffer solution contains 0.457 M ammonium bromide and 0.335 M ammonia. If 0.0430 moles of sodium…

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Q: What is the purpose of an acid-base buffer?

A: A solution of weak base or its conjugate acid or weak acid and its conjugate base which can used to…

Q: A buffer solution contains 0.341 M ammonium chloride and 0.298 M ammonia. If 0.0488 moles of…

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Q: ) Explain the difference between weak and strong acids and define what a Buffer is.

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

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Q: An aqueous solution contains 0.348 M nitrous acid. How many mL of 0.236 M sodium hydroxide would…

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Q: What are buffers? Define and discuss the differences between the two types of buffers presented

A: A buffer is a solution that can resist pH change upon the addition of an acidic or basic components.…

Q: A buffer solution contains 0.427 mol of carbonic acid and 0.512 mol of sodium hydrogen carbonate in…

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Q: List the three chemical buffers, and describe how and where they buffer pH.

A: Chemical buffer solutions consists of a weak acid or weak base and their respective conjugate base…

Q: An aqueous solution contains 0.370 M nitrous acid. many mL of 0.236 M potassium hydroxide would have…

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Q: pH

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Q: A buffer solution contains 0.209 M ammonium chloride and 0.301 M ammonia. If 0.0515 moles of…

A: 1- First calculate the moles of salt and base before addition of acid HI :  a) moles of NH4Cl = […

Q: An aqueous solution contains 0.339 M nitrous acid. How many mL of 0.370 M sodium hydroxide would…

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Q: A buffer solution contains 0.345 M NaHSO3 and 0.430 M Na,SO3. If 0.0273 moles of perchloric acid are…

A: We will use buffer equation

Q: A buffer solution contains 0.451 M hypochlorous acid and 0.263 M sodium hypochlorite. If 0.0210…

A: Given, strength of hypochlorous acid - 0.451 Mstrength of sodium hypochlorite - 0.263 Mstrength of…

Q: A buffer solution contains 0.337 M ammonium bromide and 0.212 M ammonia. If 0.0250 moles of sodium…

A: Given: The concentration of NH3=0.337 M The concentration of NH4Br=0.212 M. The number of moles of…

Q: A buffer solution contains 0.472 M hydrocyanic acid and 0.249 M sodium cyanide. If 0.0290 moles of…

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Q: What are buffers in terms of acid-base equilibria, give an example, and can a buffer capacity be…

A: Buffer solution is a solution that is maintaining it's hydrogen ion concentration pH. With only…

Q: What is the pH of buffer that is 0.175 M in a weak acid and 0.200 M in the acid's conjugate base?…

A: Given data, Molarity of weak acid=0.175MMolarity of conjugate base=0.200MKa=5.7×10-4

Q: A buffer solution contains 0.495 M acetic acid and 0.331 M sodium acetate. If 0.0304 moles of…

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Q: The detergents in shampoo are quite basic and can be damaging to the hair and scalp. A Citric…

A: The detergents in shampoo are quite basic and can be damaging to the hair and scalp.  A Citric Acid…

Q: Acetic acid buffers are most effective in resisting pH changes to

A: a solution which resist in ph change value upon adiition of small amount of strong acid or base…

Q: A buffer solution contains 0.227 M ammonium chloride and 0.450 M ammonia. If 0.0418 moles of nitric…

A: A solution of ammonium chloride in ammonia is a buffer solution of a weak base and the salt of its…

Q: An aqueous solution contains 0.313 M nitrous acid. How many mL of 0.351 M potassium hydroxide would…

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

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Q: A buffer solution contains 0.467 M potassium hydrogen sulfite and 0.215 M potassium sulfite. If…

A: The concentration of NaOH in the 125 mL buffer solution is; MNaOH=0.0219 mol125 mL×1000 mL1.0…

Q: Which solution has the greatest buffer capacity? Which solution can react with the largest amount…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: A buffer solution contains 0.228 M ammonium chloride and 0.315 M ammonia. If 0.0274 moles of nitric…

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Q: A buffer solution contains 0.289 M KH2PO4 and 0.399 M K2HPO4. If 0.0485 moles of hydroiodic acid…

A: To calculate the pH of the resulting solution when 0.0485 moles of hydroiodic acid are added to 250…

Q: A buffer is able to resist large changes in pH, because...

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Q: What is the pH of a buffer solution when the concentrations of both buffer components (the weak acid…

A: The pH of a buffer solution can be calculated by using Henderson- Hasselbalch equation.

Q: Explain the Buffer Range and Buffer Capacity?

A: Buffer range : pH range in which buffer solution can resist the change in pH effectively is known as…

Q: A buffer solution contains 0.301 M ammonium chloride and 0.394 M ammonia. If 0.0328 moles of…

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Q: Which of the four systems formed a buffer (at least initially)? Explain why

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Q: Suppose that a buffer contains equal amounts of a weak acid and its conjugate base. What happens to…

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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.