A 25.0-mL sample of 0.150 M hydrazoic acid is titrated with a 0.150 M NaOH solution. What is the pH after 13.3 mL of base is added? The Ka of hydrazoic acid is 1.9 × 10-5.

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A: Answer:

Q: 29. The acid HA has an ionization constant of 10-5, If 50 ml 0.1N HA is diluted to 200 ml and…

A: Ka (HA) = 10-5  pKa = -logKa        = -log ( 10-5 )        = 5Initial Normality of HA =M1 = 0.1…

Q: An analytical chemist is titrating 73.6 mL of a 0.8200M solution of benzoic acid (HC H, CO₂) with a…

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Q: An analytical chemist is titrating 228.8 mL of a 0.6100M solution of hydrazoic acid (HN3) with a…

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Q: buffer solution is formed by adding 0.320 moles of solid sodium lactate, NaC₃H₅O₃, to 600.0 ml of…

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Q: A buffer solution is made that is 0.310 M HCN and 0.316 M in NaCN. If Ka for HCN is 4.00 × 10-¹0,…

A: Given,molarity of HCN = 0.316 Mmolarity of NaCN = 0.316 MKa of HCN = 4.00 x 10-10 moles of NaOH =…

Q: An analytical chemist is titrating 211.6 mL of a 0.3800M solution of hydrazoic acid (HN,) with a…

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Q: An analytical chemist is titrating 213.8 mL of a 0.2800M solution of butanoic acid (HC3H,CO₂) with a…

A: Volume of butanoic acid, V1 = 213.8 mL = 0.2138 L ( 1L = 1000 mL) Concentration of butanoic acid, M1…

Q: A 150.0 mL sample of 0.20 M HF is titrated with 0.10 M NaOH. Determine the pH of the solution after…

A: Given data:- Volume of HF = 150 mL = 0.150 L Molarity of solution = 0.20 M  Ka for HF = 3.5 X 10-4…

Q: Calculate the pH of a solution in which 15 mL of 0.10 M NaOH is added to 25 mL of 0.10M HCI.

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Q: You are studying a clear solution and you added the pH indicator methyl violet. The colour range of…

A: The color of a solution of pH 0.2 is needed to be determined on the addition of an acid-base…

Q: An analytical chemist is titrating 117.9 mL of a 0.3200M solution of benzoic acid (HC H₂CO₂) with a…

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Q: a buffer solution consisting of 0.15 moles of ammonia dissolved in half a liter of water. how much…

A: A buffer solution s composed of the weak acid and its conjugate base or weak base and conjugate…

Q: Calculate the pH of a buffer solution containing 0.716 mol HA weak acid and 0.607 mol A- in 239.9 mL…

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

Q: What concentration of sodium benzoate must be used to create a buffer solution with a pH of 5.63 if…

A: Use a udic buffer equation to get MOLARITY of sodium benzoate. Buffer mixture is defined as an…

Q: If 24.8 mL of 0.107 M acid with a pKa of 5.76 is titrated with 0.102 M NaOH solution, what is the pH…

A: pH = pKa + log [salt]/[acid] Number of moles = molarity x volume (L)

Q: The p?a of hypochlorous acid is 7.530. A 59.0 mL solution of 0.105 M sodium hypochlorite (NaOCl) is…

A: The number of moles of NaOCl  and HCl is calculated as follows: Moles of NaOCl = Molarity × Volume…

Q: 55.0 mL of 0.325 M HNO is titrated by 0.350 M KOH. Calculate the pH of the acid solution before any…

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Q: Consider the titration of HCOOH with NaOH. A 125 mL sample of 0.27 M HCOOH is titrated with 0.18 M…

A: Given the titration of HCOOH with NaOH ,as NaOH is strong base , while formic acid is not stong acid…

Q: What is the pH of a buffer solution made by adding 0.15 mole of lactic acid HC3H5O3 and 0.12 mole…

A: A buffer is a solution which resists a change in its pH, i.e., its pH does not change. For example,…

Q: An analytical chemist is titrating 87.3 mL of a 0.9000M solution of butanoic acid (HC3H,CO₂) with a…

A: Answer: When base is added in the acid solution, salt and water will form and lots of heat gets…

Q: An analytical chemist is titrating 101.8 mL of a 1.100M solution of benzoic acid (HC HCO₂) with a…

A: A solution of benzoic acid 1.100M x 101.8ml = 111.98 mmol  is titrated with 0.2600 M × 514.6 ml  =…

Q: When a 18.6 mL sample of a 0.490 M aqueous hydrofluoric acid solution is titrated with a 0.336 M…

A: We have to calculate the pH of solution

Q: For the titration of 50. mL of 0.10 M ammonia with 0.10 M HCI, calculate the pH. For ammonia, NH3,…

A: When weak base like ammonia is treated with strong base like hydrochloric acid. Then pH decreases…

Q: You need to make a buffer whose pH is 7.0, and you can choose from the weak acids shown. Briefly…

A: An acid is defined as the chemical substance that loses protons or hydrogen ion to the solution. A…

Q: Formic acid, HFor, has a Ka value of 1.8 x 10^-4. You need to prepare a buffer having a pH of 3.25…

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Q: A solution contains 0.363 M HA (Ka = %3D 6.74-10-46.74-10-4) and 0.677 M NaA. What is the pH of this…

A: A solution contains 0.363 M HA and 0.677 M NaA.Ka of HA is 6.74 × 10-4We have to calculate the pH…

Q: The Ka of hydrocyanic acid (HCN) is 4.0 × 10-10.  Determine the pH of a 0.300 mol/L solution of…

A: Ka = 4.0 × 10-10 Concentration of acid = 0.300M HCN ⇌ H+(aq) + CN-(aq) Let assume x is the…

Q: If 0.10 M Acetic acid + 0.10 M sodium acetate at a final volume of 50 ml was prepared? what is the…

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Q: 20.00 mL of 0.035 M formic acid solution is titrated with 0.0175 M sodium hydroxide. Calculate the…

A: Molarity of formic acid, M1 = 0.035 M Volume of formic acid, V1 = 20.00 mL = 0.020 L Molarity of…

Q: 15. A 25.0 mL solution of 0.250 mol/L methanoic acid, HCOOH(aq), is titrated with a 0.100 mol/L…

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Q: (a) Calculate the pH of the 0.30 M NH3 / 0.35 M NH4Cl buffer.   What is the pH of the buffer after…

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Q: A 100.mL of 0.250 M HNO2 is added to 200.mL of 0.100 M NaNO2. What is the concentration of…

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Q: When a 29.6 mL sample of a 0.484 M aqueous hydrofluoric acid solution is titrated with a 0.499 M…

A: Given that Molarity of HF = 0.484 M   Volume of HF = 29.6 mL   Ka of HF= 3.5 x 10-4     pKa = –…

Q: How many grams of sodium acetate (82.03 g/mol) must be added to 1.00 L of 0.50 M solution of acetic…

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Q: An analytical chemist is titrating 165.8 mL of a 0.9300M solution of propionic acid (HC₂H₂CO₂) with…

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Q: A solution prepared by mixing 1.73 of propionic acid (HC3H5O2) and 0.53 g of NaOH in water (Ka…

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Q: If you have a ka = 8.25x10^-8, what buffer system will you use? Acetic acid (HC2H302) - Acetate ion…

A: Given: Ka of acid = 8.25 × 10-8

Q: An analytical chemist is titrating 128.3 mL of a 0.7000M solution of cyanic acid (HCNO) with a…

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Q: what is the pH of a buffer solution containing 0.100 M acetic and 0.050 M sodium acetate. The Ka for…

A: The buffer solution is composed of acetic acid and its conjugate base, acetate. Acetic acid is a…

Q: Moly Cule is titrating 0.2 M of a strong base (NaOH) into 100 ml of a solution of 0.1M weak acid…

A: Given: Molarity of NaOH  = 0.2 M Volume of solution = 100 mL Molarity of HAc     = 0.1 M Ka for HAc…

Q: A 6.25−g quantity of a diprotic acid was dissolved in water and made up to exactly 275 mL. Calculate…

A: A diprotic acid is that which can release two protons. For complete neutralization of such acid,…

Q: What is the pH of a 75.0 mL of a 0.1 M NH3 solution (Kb= 1.8 x 10- 5) when 100.0 mL of a 0.0.75 M…

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Q: What is the pH of an aqueous solution made by mixing 300 mL of 0.10M hydrofluoric acid (pKa= 3.18)…

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Q: HCN is a weak acid with a Ka = 4.90 x 1010 A 50.00 mL sample of this HCN solution %3D (0.250 M) is…

A: Given: Ka = 4.90 × 10-10  Concentration of sample = 50 mL Molarity of HCN = 0.250 M Molarity of NaOH…

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.