Butyric acid (HC4H7O2) is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. What is the Ka for the acid? A. 0.36 B. 2.4 ×× 10–2 C. 7.8 ×× 10–3 D. 1.5 ×× 10–5 E. 4.6 ×× 10–4

Q: Consider the Ka information to answer parts a-b. Ka 7.2 x 10 * K 4.2 x 10- Formula Kat 6.3x 10 a.…

A: Answer:- This question is answered by using the simple concept of calculation of Ka and Kb value…

Q: A 0.50 M solution of an acid HA has pH = 2.24. What is thevalue of Ka for the acid? (a) 1.7 x 10-12…

A: Assuming HA is a weak acid Hence it will dissociate partially as per the reaction  HA -----> H+ +…

Q: KA

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Q: 3.What is the hydrogen ion concentration of a solution with a pH of 2.0?

A: • As per guidelines, we are supposed to answer only 1 question if multiple questions are asked.

Q: 8. Propanoic acid (CH₂CH₂COOH, which we simplify to HPr) is a carboxylic acid whose salts are used…

A: Molarity of propanoic acid solution is 0.10M  Acid dissociation constant Ka is 1.3 * 10-5  We have…

Q: A 0.303 M solution of hydrogen sulfide has a pH of 3.80. What is the Ka of hydrogen sulfide? a. 1.6…

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Q: If you make a solution that is a 0.500 M solution of ascorbic acid (H2C6H6O6, pKa1 = 4.10, pKa2 =…

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Q: The muscle pain and fatigue felt during strenuous  exercise is caused by the buildup of lactic acid…

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Q: What is the k a of a monoprotic weak acid if a 0.825 M solution has a pH of 2.046?…

A: Given: The reaction is as follows: HA(aq)------------>H+(aq)+A-(aq). The concentration of…

Q: Lactic acid, HC3H5O3, is found in sour milk. What is the pH of 0.30 Mlactic acid? (Ka = 1.4 ××…

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Q: Determine the pH and pOH of 0.25 L of a solution that is 0.0196 M  boric acid and 0.0321 M  sodium…

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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: A solution of acetic acid has pH = 3.5. A small portion of sodium hydroxide (NaOH) is added to the…

A: pH= -log(H+). Basically, pH is determined by concentration of proton(H+) present in the solution.…

Q: 6. _C₂H4(g) + O2 (g)=CO₂ (g) +____ _H₂O (1) - If 10 moles of ethylene reacts with 9 moles O₂ to…

A: Given :  1. Moles of ethylene = 10 moles  Moles of O2 = 9 moles  Moles of CO2 produced = 2 moles…

Q: BenzoicacidhasaKa of6.46x10 . What is the pH of the solution that results when 25.0 mL of 0.300 M…

A: The number of moles of benzoic acid, KOH, and the concentration of KOH and benzoic acid is…

Q: NaCLO(s) dissociates when it dissolves in water: NaClO(s) + H2O(l) →Na+(aq) + ClO−(aq) and in water…

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Q: 16. The pH of a weak monoprotic acid (HA) is 3.75. If the ionization constant for this acid is 8.9 x…

A: Given that,  pH of a weak monoprotic acid (HA) = 3.75  Ionization constant of the acid (Ka) =…

Q: WCLN.ca 11. A 750. mL sample of nitrous acid (HNO2) has a pH of 2.35. How many grams of HNO2 were…

A: The question is based on the concept of equilibrium. we have been given PH and volume of the…

Q: Barbital is a weak monoprotic acid with Ka = 1.0 x 10-8. What is the pH of a 1.5 x 10-4 M solution…

A: Let Barbital maybe HA Ka  = 1x10-8 [HA] = 1.5x10-4 draw an ICE table

Q: pH Calculations of Polyprotic Systems b.)What is the pH of 0.1000 M NaH2PO4? (Ka1 = 6.9x10-3,…

A: Given :  Ka1 = 6.9 x 10-3  Ka2 = 6.2 x 10-8  Ka3 = 4.8 x 10-13  Concentration of NaH2PO4 = 0.1000 M…

Q: What is the k a of a monoprotic weak acid if a 0.619 M solution has a pH of 4.242?

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Q: A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine…

A: The main constituent of Gastric juice is hydrochloric acid (stomach acid).Given,Volume of HCl (V1) =…

Q: Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a…

A: Option c is correct. 1.5 × 10-5

Q: solution of HCN was prepared in 2.5 L of water.  The pH of this solution at 25°C was determined to…

A: HCN is a weak acid, it does not dissociate completely. (

Q: HA, a weak acid, also forms the ion HA2- in solution. The reaction is HA(aq)+A−(aq)↽−−⇀HA2-(aq)…

A: The ratio of moles to volume is known as concentration.

Q: Lemons get their sour flavor from citric acid (Ka = 7.4 x 10-4) a fresh squeezed lemon can have a…

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Q: CH3CH₂COOH(aq) + H₂O(l) → CH3CH₂COO (aq) + H30* (aq) Propanoic acid, CH3CH₂COOH, is a carboxylic…

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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: 10. What is the pH of 10.0 mL of 0.035 M HNO3? A. 5.30 B. 2.70 C. 6.70 D. 1.46 E. 10.0

A: pH is a measure of the acidity of the solution. The lesser the pH, the more will be the acidity of…

Q: 14.What is the k a of a monoprotic weak acid if a 0.213 M solution has a pH of 2.876?   A.…

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Q: 7. a) Calculate the pH of a 2.0 M aqueous solution of H2SO4. b) Calculate the pH of a 5.0 × 10 M…

A: 7. a) calculating the pH of a 2.0 M aqua solution of H2SO4: Given;

Q: 6. The pH of a 0.50 M solution of the weak base ethyl amine, C2H5NH2, is 12.20. a. Write the…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as…

Q: A 0.037 M solution of a weak acid (HA) has a pH of 4.59. What is the Ka of the acid?

A: Given :-  Concentration of weak acid = 0.037 M  pH of solution = 4.59  To calculate :-  Value of Ka

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: What is the pH of 0.025 M aqueous acetate ion? (Kb of CH3C

A: According to Ostwald’s Dilution Law and the pH (& pOH) scales, we can derive pOH =…

Q: 15. The first disinfectant used by Joseph Lister was called carbolic acid. This substance now is…

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Q: Hydrofluoric acid has a Ka value of 7.2 x 10-4. What is the pH of a 0.040M solution of HF? a. 1.4 b.…

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Q: Gifblaar is a small South African shrub and one of the most poisonous plants knownbecauseit contains…

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Q: 11. If 80 ml of a .95M HOCN is reacted with 100 ml of a .80M solution of CSOH, what is the resulting…

A: Whenver an acid and base reacts with each other than they form salt and water and the process is…

Q: A buffer solution is prepared by dissolving 1.100 g of ammonium chloride (NH4Cl) into 100.00 mL of a…

A: Since the pOH of monoprotic weak base buffer is given by Henderson-Hasselbalch equation as  pOH =…

Q: A given acid whose concentration is 0.492 molar has a pH of 3.38. What is the KA for this acid? 3.5…

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Q: An acid mixture contains 0.60 M HClO (Ka = 2.9 × 10−8) and 0.50 M H2O2 (Ka = 2.4 × 10−12).  What is…

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Q: Which of the two solutions has the lower pH: a. 0.2 M Fe(ClO4)2 or 0.2 M Fe(ClO4)3 b. 0.5 M Hg(NO3)2…

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

Q: The pH of 0.100 M Jackmanic Acid, HJa, is 2.24. What is the value of  Ka for the acid?   a. 5.4 ×…

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Q: Hydrofluoric acid has a Ka value of 7.2*10^-4. What is the pH of a 0.04M solution of hydrofluoric…

A: Given information, Ka of hydrofluoric acid = 7.2*10-4 Initial concentration of hydrofluoric acid =…

Q: what is the ph of a solution that is 0.75 M in sodium acetate and 0.50 M in acetic acid? (Ka for…

A: Given : concentration of acetic acid = 0.50 M concentration of sodium acetate = 0.75 M and Ka of…

Q: What is the pH of a 0.0100 M solution of acetic acid? Ka=1.8x10-5

A: Dissociation of acetic acid can be written as; CH3COOH →   CH3COO- + H+ Given that concentration of…

Q: the solution of 2.50 L of a 0.250M CH3CO2H has a pH of 4.20, what is the pH if you add 20.0 mL of…

A: At equilibrium,                              CH3COOH  ⇌  CH3COO-  +  H+  The pH of this solution can…

Q: Hydrofluoric acid has a Ka value of 7.2 10^4. What is the pH of a 0.04M solution of hydrofluoric…

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of…