pH of the buffer after the addition of the NaOH

Q: You are asked to prepare a buffer solution with pH = 3.00 starting from 1.25 L of 1.00 M…

A: Given: Ka of HF acid is=3.5×10-4. To find: mass of sodium fluoride. Solution: As we know that, there…

Q: Suppose you have 100 mL of a buffer containing 0.100 M acetic acid and 0.0500 M sodium acetate.…

A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or…

Q: A buffer consisting of lactic acid and sodium lactate has the pH = 4.30. Given that the…

A: Consider the given information is as follows;            Concentration of lactic acid = 0.12 M…

Q: A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of KH2PO4 1.00M. Calculate the moles of…

A: A buffer is prepared by adding 150mL of KOH 1.00M to 250mL of KH2PO4 1.00M. after adding HCl  the pH…

Q: To mimic a blood buffer, a scientist prepared 1.00 L buffer containing 0.0025 mol carbonic  acid,…

A: Given Ka = 4.3*10-7 concentration of H2CO3 = 0.0025 Concentration of HCO3- = 0.025

Q: A student obtains a sample of 0.02500 M acetic acid (CH3COOH, 60.05 g/mole, Ka =1.8 x 10-5). 50.00…

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Q: You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium…

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

Q: You need to produce a carbonic (H,CO3)/bicarbonate buffer solution that has a pH of 4.50. You…

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Q: Consider a buffer solution containing 0.040 M ammonia (NH3) and 0.060 M ammonium chloride (NH4Cl).…

A: Ka = 5.70*10-10 Volume of NaOH = 5 mL Molarity of NaOH = 1M Concentration of NH3 = 0.040M…

Q: Define the following terms: titration equivalence point buffer point molarity What instrument are…

A: 1. Titration  = It is a laboratory method of quantitative chemical analysis in which the solution of…

Q: A benzoic acid-sodium benzoate buffer is prepared by dissolving a certain amount of sodium benzoate,…

A: A buffer solution is an aqueous solution. It consist of a mixture of a weak acid and its conjugate…

Q: A buffer solution contains 1.7 M acetic acid and 2.6 M sodium acetate. The Ka  of the acetic acid is…

A: Calculation of pKa of acetic acid: pKa=-log Ka=-log (1.8×10-5)=4.745

Q: Suppose you have 100 mL of a buffer containing 0.100 M acetic acid and 0.0500 M sodium acetate.…

A: The buffer solution are made from the weak acid and its conjugate base or weak base and its…

Q: Calculate the pH of a base buffer solution composed of 0.20 M NH3 and 0.15 M NH4Cl after the…

A: The formula to calculate the pH of the solution is, pOH+pH=14pH=14-pOH Given, The concentration of…

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 x 10-3, K₁2 = 6.2 x 10-8, and K₁3 = 4.8 × 10-13). To…

A: First, we have to find the value of pKa of phosphoric acid that should be used to calculate the pH…

Q: A buffer is made using 50.00 mL of 0.7000 M HA (a weak acid, Ka = 1.000 x 10-5) and 50.00 mL of…

A: GIVEN: Initial concentration of HA=0.7000 M  Initial volume of HA =50.00 mL Initial concentration of…

Q: A buffer solution is prepared by dissolving 1.50 g each of benzoic acid, HC7H5O2, and sodium…

A: The objective of this question is to calculate the pH of a buffer solution prepared by dissolving…

Q: 50.0 ml of 0.1 M NaOH is added to 100.0 ml of 0.2 M HCN (Ka=6.2x10-10). What is the pH of the…

A: A buffer solution is a mixture of weak acid and its conjugate base or weak base and it's conjugate…

Q: Determine the pH of a buffer containing 0.12 M acetic acid (pKa = 4.76) and 0.078 M sodium acetate?…

A: To determine the pH of a buffer solution consisting of 0.12 M acetic acid and 0.078 M sodium…

Q: 500.0 mL of 0.120 M NaOH is added to 535 mL of 0.250 M weak acid (Ka = 4.26 × 10-5). What is the pH…

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Q: What mass (in g) of sodium formate, HCOONA, must be added to 10.0 L of a 0.483 Maqueous solution of…

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Q: A buffer contains 0.200 mol of lactic acid (CH3CH(OH)COOH) and 0.300 mol of sodium lactate…

A: Given :  Moles of lactic acid = 0.200 mol  Moles of sodium lactate = 0.300 mol  Volume of solution =…

Q: a)  What is the pH of a buffer prepared by adding 0.506 mol of the weak acid HA to 0.507 mol of NaA…

A: the solution is as follows:

Q: You prepare a buffer by mixing 0.15 mol propanoic acid (pKa = 4.87) and 0.25 mol sodium propionate.…

A: Mole of propanoic acid = 0.15 molMole of sodium propionate = 0.25 molpKa = 4.87 Mole of NaOH = 0.025…

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 × 10-3, K2 = 6.2 x 10-8, and Ka3 = 4.8 x 10-13). To…

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Q: A buffer is made by mixing 1.250 mol formic acid, HCOOH, with 0.750 mol sodium formate, HCOONa in…

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Q: Determine the mass of solid NaCH₃COO that must be dissolved in an existing 500.0 mL solution of…

A: Given that, Ka for CH₃COOH is 1.8 × 10-5

Q: A buffer at pH 5.1 is prepared from a total concentration of 0.278 M sodium acetate and acetic acid.…

A: A solution containing acetic acid and sodium acetate represents a solution that has weak acid and…

Q: When titrating a 25 mL solution of 0.20M CH3COOH with 0.10M KOH, you realize you forgot to add an…

A: The question is based on the titrations.  we are titrating a weak acid acetic acid with a strong…

Q: A buffer is composed of 0.200 M HC2H3O2 (Ka = 1.8 × 10–5) and 0.250 M NaC2H3O2. What is the pH of…

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

Q: Acetic Acid: Ka = 1.7 x 10-5 Hydrofluoric Acid: Ka = 6.8 x 104 Propionic Acid: Ka = 1.3 x 10-5 A…

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Q: A buffer can be prepared from a weak acid, HA, and it's conjugate base, A⁻. A 1L solution is…

A: pH of weak acid buffer is obtained from Henderson Hassel Bach equation.

Q: The buffer capacity of a solution may be defined as the number of moles of H+ that will change the…

A: Given Ka, find pKa as pKa = -log (Ka) = -log (1.8 x 10-5) = 4.74. Find the pH of the buffer by using…

Q: A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per liter.…

A: Buffer solutions are solutions that can resist pH changes. Buffer solution contains a weak acid/base…

Q: Calculate the pH of a 1.00 L buffer solution containing 0.143 mol of acetic acid (HC₂H₂O₂) and 0.180…

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Q: A chemist creates 0.375 L of a 0.18 M acetic acid (CH3COOH) and 0.29 M sodium acetate (CH3COONa)…

A: Answer:- This question is answered by using the simple concept of calculation of pH of a buffer…