1. What would be the pH of buffer containing 137ml of 3.50M boric acid and 228ml of 1.90M lithium borate. The pKa of buffer system is 13.80. solved answer pH= 13.76 2. What would be the pH of the buffer from question 1, after adding 84.5ml of 0.71 M KOH (strong base) to buffer? ??

Q: 13 11 9 pH 7 1 5 10 15 25 20

A: Answer: This question is based on the understanding of the titration curve of acid and base where…

Q: A student needs to prepare a buffer solution with a pH of 4.65. Assuming a pKa of 4.57, how many mL…

A: Given: pH of buffer = 4.65  pKa of acid = 4.57  Concentration of HB = 0.1 M Volume of HB solution =…

Q: Buffer: HC₂0/C₂O²- What mass of Na2C2O4 must be added to 500. mL of 0.25 M HC2O4- to generate a…

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

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Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M HC₄H₇O₂ with 0.100 M Sr(OH)₂…

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Q: important values if needed for Which of the following aqueous solutions are good buffer systems?…

A: Given: Some of the following solutions which can act as a buffer systems  To find: which of the…

Q: Calculate the [OH-] of 101.40 mL of a buffer initially consisting of 0.1271 M C5H5N and 0.0838 M…

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Q: 3. Consider a lactic acid buffer containing 6.24 grams of lactic acid (90.08 g/mol) and 5.87 grams…

A: (a) Molarity of lactic acid and sodium lactate is determined as follows, Total volume of solution is…

Q: 2.Would 20 mL of your 1:1 (acetic acid: sodium acetate) solution prepared in Part B be able to…

A: Buffer capacity is the ability of buffer to resist the change in pH.

Q: The K, for ammonia is 1.8 X 10 5. How many mL of a 0.70 M NH4CI solution is need when mixing with…

A: Given : Concentration of NH4Cl = 0.70 M Concentration of NH4OH = 1.0 M Volume of buffer = 50.0 mL…

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Q: A 35.7 mL sample of a 0.324 M aqueous acetic acid solution is titrated with a 0.422 M aqueous sodium…

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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: A student attempts to determine the buffer capacity of a solution by titrating 40.0 mL of solution…

A:

Q: A buffer is prepared such that [CH3COOH], = [CH3C00-lo = 0.050 M. Calculate the volume of 0.10 M…

A: Millimoles of Acetic acid = M x V   = 0.050 x 100.0  = 5.0 mmol = Millimoles of sodium acetate  Let…

Q: A buffer system is prepared that is 0.020 M in NH3 and 0.030M in NH4*. What is the concentration, in…

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Q: 10.00mL of 0.10M HCI were collected in an Erlenmeyer flask, and then diluted to 100mL with distilled…

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Q: A buffer solution is prepared by combining 3.00 grams of 3-nitrobenzoic acid (138.12g/mol) in…

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Q: Blood is buffered by carbonic acid and the bicarbonate ion. Normal blood plasma is 0.024 M in HCO3…

A: The Henderson-Hasselbalch equation relating the pH of the solution and the acid dissociation…

Q: In a laboratory experiment, the pH of a solution must be maintained at around 7.5. Which of the…

A: Given table is : Buffer solution pKa 1). H3PO4/H2PO4-  2.18 2). HC2H3O2/C2H3O2- 4.76 3).…

Q: Which of the following combinations of chemicals makes a buffer? Mark all that apply. (Identifying…

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Q: A student needs to prepare a buffer solution with a pH of 5.10. Assuming a pka of 4.37, how many mL…

A: Since concentration of HB and B- are the same (both at 0.1 M), we'll use the second expression for…

Q: 25 mL of a 0.0268 M solution of an unknown monoprotic acid was titrated with 0.0633 M NaOH solution.…

A: Given: Volume of monoprotic acid (assuming HA) = 25 mL = 0.025 L                            (since 1…

Q: A chemistry graduate student is given 450. mL of a 0.80M ammonia (NH,) solution. Ammonia is a weak…

A: Solution :    The pOH of the buffer of the weak base can be calculated by Henderson Hasselbalch…

Q: A buffer of acetic acid and sodium acetate is prepared by mixing 10.0 mL of 0.50 M acetic acid with…

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Q: Buffer B and Buffer C both contain 1.000 M HC,H3O2, yet adding 5.00 mL of 0.5000 M NaOH to 20.00 mL…

A: A question based on equilibrium concept, which is to be accomplished.

Q: A 32.19 mL aliquot of weak base that has a concentration of 0.557 M will be titrated with 0.493 M…

A: Since you have posted multiple questions we will solve only first question for you, to get other…

Q: A buffer solution was made by adding 9.35 mL of 0.50 M acetic acid and 0.628 g sodium acetate with…

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Q: Calculate the pH of the buffer that results from mixing 60.0 mL of 0.25O M HCHO2HCHO2 and 15.0 mL of…

A: Given that: volume of HCHO2= 60.0 mL molarity of HCHO2 = 0.250 M volume of  NaCHO2 = 15.0 mL…

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Q: What is the hydroxide ion concentration in a solution that containing 0.50 mole of ammonium…

A: Given : No. of moles of Ammonium hydroxide = 0.50 mol No. of moles of Ammonium chloride = 0.05 mol…

Q: 1.48 L buffer solution consists of 0.332 M propanoic acid and 0.178 M sodium propanoate. Calculate…

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Q: ify if the following system will for t. Write "BUFFER" or "NOT A BU answer. 5 M H2SO4 and 0.5 M…

A: Buffer solution is the mixture of weak Acid/base with its conjugate base/acid.  Acidic buffer is the…

Q: A buffer solution is made from 135 mL of 0.395 M in HC2H3O2 and 115 mL 0.345 M NaC2H3O2 (the Ka of…

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Q: Calculate the [H3O*] of 114.01 mL of a buffer initially consisting of 0.1752 M C2H5NH2 and 0.1926 M…

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Q: An analytical chemist is titrating 202.1 ml. of a 0.6900M solution of isopropylamine ((CH₂), CHNH.)…

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Q: For each solution, calculate the initial and final pH after adding 0.010 mol of HCl.a. 500.0 mL of…

A: Given,  Number of moles of HCl = 0.010 mol  Calculate the pH after the addition of 0.010 mol of HCl…

Q: A 34.8 mL sample of a 0.542 M aqueous hypochlorous acid solution is titrated with a 0.325 M aqueous…

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Q: Why is a buffer composed of Hc2H3O2 and NaC2H3O2 more effective at maintaining the Ph of a solution…

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

Q: Use the simultaneous equations method to solve this problem. When 10.00 mL of 0.010 M HCIO are…

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Q: Would a 0.010 M buffer solution or a 0.10 M buffer solution have a greater buffering capacity for…

A: Buffering capacity refers to the amount of added base or added acid that can be neutralized by a…

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M H₂NNH₂ with 0.100 M HNO₃ after…

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Q: A buffer is made by combining 20.0 ml. 0.250 M NHACl with 30.0 mL 0.250 M NH3. A) Calculate the pH…

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Q: When pH titrations occur, more data points become necessary at the vertical deflection near the…

A: Solution - According to the question - Given - In this given graph we assume this is a titration…

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: Determine the pH of a buffer that is 0.25 M NH₃ and 0.15 M NH₄Cl. The value of pKb for NH₃ is 4.75.

A: Given; 0.25M NH3 and 0.15M NH4cl PKb (NH3)4.75 NH3 is a weak base and NH4Cl is its salt with strong…

Q: The following question refers to the buffer system: A 1.0-liter solution contains 0.35 M HNO2 and…

A: Buffer solution is that which resists change in pH when small amount of acid or base is added to it.…

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.