You have 75.0 mL of 0.10 M HA. After adding 30.0 mL of 0.10 M NaOH, the pH is 5.30. What is the Ka value of HA? Ka = ?

Q: 1. Calculate the pH of an acetate buffer prepared by dissolving sodium acetate (5.21 g) and acetic…

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Q: Ascorbic acid (HC6H706) is a weak monoprotic acid (HA); A) Calculate the pH of a solution produced…

A: The above question is from titration of weak acid with a strong base.

Q: You have 75.0 mL of 0.10M HA. After adding 30.0 mL of 0.10 M NaOH, the pH is 5.30. What Is the Ka…

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Q: A student has a sample of 0.50 M lactic acid (HC3H5O3). She adds 10 mL of this solution to 40 mL of…

A: Given : Concentration of lactic acid = 0.50 M Volume of lactic acid solution used = 10 mL = 0.010 L…

Q: A 0.301-M aqueous solution of a weak acid has a pH of 3.88. Calculate Ka for the acid. Ka =

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Q: Calculate the pH of 50.0 ml of 0.250 M oxalic acid (HOOCCOOH) upon addition of 15 mL of 0.500 M…

A: Oxalic acid is a diprotic weak acid, whereas monoacidic NaOH is a strong base. Given the volume of…

Q: 10 10 mL 0.05 M NAOH Hd

A: Henderson's equation: pH = pKa + log[salt]/[acid] at equivalent point: [salt] = [acid] pH = pKa

Q: You begin with 100 mL of 0,250 M HCN and add to it 0,75 M NaOH at 25°C (HCN Ka = 6,2 * 10-10)…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What is the pH of a 80.0 mL solution which is 0.23 M in IO and 0.47 M in HIO? The Ka for HIO is 2.3…

A: When a weak acid(eg HIO) mixed with its conjugate base (ege IO-) they form a buffer solution. pH of…

Q: C6H4NH2COOH, para-aminobenzoic acid (PABA), is used in some sunscreen agents. Calculate the…

A: Para-aminobenzoic acid (PABA), C6H4NH2COOH dissociates as,                              C6H4NH2COOH…

Q: What is the pH when 29.3 mL of 0.10 M NaOH is added to 25.0 mL of 0.35 M HF?

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Q: If you have 500 ml of .15M Formic Acid, what is the pH of this solution? What is the pKa? How many…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the pH of a 20.0 mL solution of 0.200 M nitrous acid that has had 15 mL of 0.100 M NaOH…

A: In this question, we want to determine the pH of the Solution.  How we can determine, you can see…

Q: 2. A 0.35 M solution of a mono-protic weak acid (HA) is 20 % ionized. Calculate the Ka for this…

A: Given data :- Molarity/ concentration of mono-protic weak acid = 0.35 M 20 % of the acid is being…

Q: Q2:A buffer solution is prepared by mixing 1.0 mole of HA and 1.0 mole of NaA into 1.0 L distilled…

A: from henderson hesselbalch equation,                                        pH = pKa +  log ([HA…

Q: Calculate Ka for HA.

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Q: If [HA]pKa pH<pKa

A: Buffer solution : It is a solution that has the ability to resist in the change in pH when a small…

Q: The pH of a 0.45 M solution of a weak acid, HA, is 2.13. What is the value of Ka for the weak acid?

A: Given data,pH=2.13Molarity of HA=0.45

Q: 2) HF is as weak, monoptoric acid with a Ka value of 6.6x104. Calculate the pH of a 0.25 M solution…

A: Weak acid and its salt will form buffer solution.  Note: As per our company guideline we can answer…

Q: You have 75.0 mL of 0.17 M HA. After adding 30.0 mL of 0.10 M NaOH, the pH is 5.50. What is the Ka…

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Q: How much water should be added to 10.0 mL of 12.0 M HCl so that it has the same pH as 0.90 M acetic…

A: Given : Concentration of HCl = 12.0 M Volume of HCl solution = 10.0 mL And concentration of acetic…

Q: What is the pH of the solution containing 0.01 mol of CH3COOH and 0.820 grams of NaCH3COO in 100 mL…

A: Calculation of pH.

Q: What is the pH when 40.2 mL of 0.25 M HCl reacts with 30.5 mL of 0.30 M NaOH?

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Q: A 0.60 M solution of a weak acid, HA, has a pH of 3.41. What is the percentage ionization of the…

A: ★ Answer : percentage of ionization of the acid is 0.064%

Q: A 0.15 M solution of an acid found in milk has a pH of 2.80. What is the percentage ionization of…

A: HA → H+ + A- The formula to calculate the pH is, pH= -log[H+] Therefore rearranging the formula let…

Q: A mixture formed by adding 53 mL of 2.5 x 10-2 M HCl to 120 mL of 1.5 x 10-2 M HI. What is the pH?

A: Given, 53 mL of 2.5 x 10-2 M HCl 120 mL of 1.5 x 10-2 M HI.

Q: You begin with 100 mL of 0,250 M HCN and add to it 0,75 M NaOH at 25°C (HCN Ka = 6,2 * 10-10) a.)…

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Q: You wish to make 10.0L of phosphate buffer(0.1M) with a pH of 7.4 from NaH2PO4 (molecular weight,…

A: The buffer action due to NaH2PO4 and Na2HPO4 is due to inter conversion of the acid H2PO4-to the…

Q: If the pH of a 0.800 M solution of the acid HA is 3.45, calculate 1) the % ionization of this acid…

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Q: You have 70 ml of 0.1 M HA, after adding 30.0 ml of 0.1 M NAOH, the pH is 5.0 what is the Ka of HA?…

A: We are given an Acid HA and a base NaOH. We have to find the ka of the acid. We are also given the…

Q: Given that the Ka of a monoprotic acid HA is 3.20 x 10-7 , and the acid HA concentration is 0.751 M,…

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Q: pH

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Q: (Q25) A buffer solution is prepared by adding 0.797 moles of formic acid and 0.866 moles of sodium…

A: ★ Answer : pH of the solution will be 4.027  ★ Solution :

Q: For each of the following cases, decide whether the PH is less than 7, equal to 7, or greater than…

A: Moles = Concentration X volume of solution in L

Q: What is the pH of a solution that contains 0.2 M HCN and 0.1 M Ba(CN)2? The Ka for HCN is 6.2x10-10

A: Given Molarity of HCN = 0.2 MMolarity of Ba(CN)2 = 0.1 MKa(HCN) = 6.2 * 10-10pH = To be determined

Q: A 0.50 M solution of an acid HA has pH = 2.24. What is the value of Ka for the acid?

A: Given, molarity(M)=0.50M. The pH of the acid =2.24 To  calculate, Ka(dissociation constant of the…

Q: A 0.115 M solution of a weak acid (HA) has a pH of 3.29. Calculate the acid ionization constant (Ka)…

A: The concentration of HA = 0.115 M pH = 3.29 pH = 3.29H3O+ =10-pH=10-3.29=0.000513 M

Q: If 10.0 ml of 1.0 M NaOC and 1.0 M HOAc has a ph of 4.98, what is the equilibrium [H+] and ka value?

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Q: A 0.040 M solution of a monoprotic acid (HA) is 14% ionized. Calculate the ionization constant, Kc…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A 0.10 M solution of a weak acid HA has a pH of 2.80. What is the value of Ka for HA?

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Q: Ascorbic acid (vitamin C, C6H8O6) is a cliprotic acid (Ka1= 6.8 x 10-5 and Ka2 = 2.7 x 10-12). What…

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Q: If a 0.59 M solution of a monoprotic acid HA has a pH of 4.57, what is the Ka value of the acid HA?

A: Concentration of Acid HA = 0.59 M pH = 4.57     ICE Table:…

Q: Which pH would change the most if each of the following were diluted by adding 90.00 mL of distilled…

A: pH is the measurement of the presence of H+ ions in the solution. Mathematically it is given as,…

Q: When 0.040 moles of a weak monoprotic acid is dissolved in 500 ml of water, the pH is 3.0. What is…

A: First moles can be find out by mol/ volume (in L ).

Q: A 0.100 M solution of an acid, HA, has a pH = 1.52. What is the KA value for this acid?

A: Calculate the concentration of hydronium ion:

Q: 5 g of cyanoacetic acid, CH2CNCOOH in a liter of aqueous solution has a pH of 1.89. what is the…

A: SOLUTION Acid Dissociation Constant  It is an equilibrium constant of a weak acid which…

Q: Ka for hypochlorous acid, HCIO, is 3.0x10-8. Calculate the pH after 10.0, 20.0, 30.0, and 40.0 mL of…

A: Given: Concentration of NaOH= 0.100 M Concentration of HClO= 0.100 M Ka=3.0×10-8 To find: The pH of…

Q: What is the pH when 40.1 mL of 0.25 M HCl reacts with 30.8 mL of 0.30 M NaOH?

A: Since both HCl and NaOH are strong acid and base  hence on adding they will react completely until…

Q: The Ka of a weak monoprotic acid is 1.13 x 10-5. What is the pH of a 0.0777 M solution of this acid?…

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Q: What is the pH of a solution that is 0.025M formic acid, HCHO2, and 0.018M sodium formate,…

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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.