Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of benzoic acid, C6H5COOH, is 1.6 X 10-5. A chemist titrates 25.00 mL of a stock solution of sodium benzoate, NaC6H5COO, with 1.20 M HCl solution using a pH meter and an indicator. f)  A typical sodium benzoate solution used for preserving food has a concentration of 0.069 M (iii)  Determine the mass of sodium benzoate present in this solution.

Q: The following 4 questions involve the titration of a 50.00 mL sample of 0.200 M chlorous acid,…

A: pH - It is the negative logarithm of the hydrogen ion concentration of a solution.  Given:- Ka =…

Q: 32. Lactic acid (HC3H,O3) is a common constituent of a biologic systems. For example, it is found in…

A:

Q: The active ingredient in aspirin is acetylsalicylic acid 1HC9H7O42, a monoprotic acid with Ka = 3.3…

A: Calculate the molarity of aspirin,

Q: Sodium phosphate, Na3PO4, is an ingredient of some preparations used to clean walls before they are…

A:

Q: Calculate the pH of a 0.16 M carbonic acid solution, H2CO3(aq), that has the stepwise dissociation…

A:

Q: Andi has 100 mL of acetic acid solution, 0.1 MCH3COOH a. If Ka CH-COOH = 2 x 105, determine the pH…

A:

Q: A student forgot to label two bottles of aqueous base. One contained KOH and the other C6H5NH2. What…

A: KOH is a strong base and the other C6H5NH2 is a weak base. Strong base is 100% ionized in aqueous…

Q: The active ingredient in aspirin is acetylsalicylic acid (HC9H7O4), a monoprotic acid with a Ka of…

A:

Q: Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of…

A: given - volume of NaC6H5COO = V1 = 25 ml volume of HCl = V2 = 16.67 ml conc. of HCl = C2 = 1.20…

Q: Acetaminophen, HC8H8NO2 (MM = 151.17 g/mol), is the active ingredient in Tylenol®, a common pain…

A: The concentration/molarity ofO solution can be calculated by using the formula : Molarity = Mass of…

Q: Determine the pH of a 0.650 M solution of magnesium nitrite, Mg(NO2)2 at 25 °C. A solution…

A: Answer: Hydrolysis of the salt of weak acid and strong base or strong acid and weak base takes place…

Q: LIOH(aq) is classified as a base. The reaction equation with water utilizes which of the following…

A: The compounds that on dissociation in aqueous solution give H+ ions or accept electrons are called…

Q: 6. a) What is the pH of pure water at 35.0 °C? At this temperature Kw = 2.042 x 10-14. b) Based on…

A: (a) The chemical equation for self-ionization of water is: Thus,  At 25oC, Kw = 1.0 * 10-14 and…

Q: Which of the following is the pH of the solution containing 0.01 mol CH3COOH and 0.820 grams of…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

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

A:

Q: You have a 0.189 M solution of propanoic acid.  You add enough sodium propanoateto make the solution…

A:

Q: A solution of acetic acid, HC2H3O2, on a laboratory shelf was of undetermined concentration. If the…

A:

Q: Sodium bisulfate, NaHSO4, is used in some household cleansers as a source of HSO4- ion, a weak acid.…

A: Given:  Concentration of HSO4- = 0.75 M

Q: Monochloroacetic acid, HC2H ClO,, is a skin irritant that is used in "chemical peels" intended to…

A:

Q: Aspirin (acetylsalicylic acid) is absorbed from the stomach in the free (non-ionized) acid form. If…

A:

Q: 5) On an episode of CSI Miami, a murder is committed by pushing a guy into a pool that is "alkali."…

A: Given that: Mass of NaOH added = 36.287 kg Molar mass of NaOH = 40 g/molVolume of pool = 2,500,000 L…

Q: At 10°C, the ion-product constant of water, K w, is 6.88 × 10 –15. What is the pH of pure water at…

A: Autoionization of water takes place as follows: The product of the concentration of the hydronium…

Q: used as preservatives in vinegar, soy sauce, etc. The pH of a 0.10 M aqueous solution of sodium…

A: Sodium benzoate is salt of weak acid-strong base type salt pH = 1/2(14 + pKa + log([C]) 8.60 =…

Q: 3. The carbonate buffer system in the blood uses the following reaction: H2CO3(aq) HCO3 (aq) +…

A: Given,  Concentration of H2CO3 = [H2CO3] = 0.0012 M Concentration of HCO3- = [HCO3-] = 0.024 M pKa…

Q: Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of…

A: IMPORTANT POINTS: Firstly 25 ml  of the stock solution was taken , which was titrated with HCl…

Q: Aniline, C6H5NH2, is a weak base with K, = 3.8 x 10-10. What is the pH of 0.750 M anilinium chloride…

A: Anilinium chloride is a salt made from strong acid HCl and weak base aniline.  So, solution of…

Q: (a) What is the pH of 0.75 M NaF?(b) What is the pH of 0.88 M pyridinium chloride, C₅H₅NHCl?

A: a) The pH of 0.75 M NaF is 8.52.

Q: 500

A: Dear student I have given answer to your question in the image format.

Q: What is the pH of a solution made by adding 0.45 mol of hydrocyanic acid (HCN) and 0.35 mol of…

A: For a solution containing weak acid and its conjugate base, pH is given by Henderson Hasselbalch…

Q: Phenol, once known as carbolic acid, HC6H5O, is a weak acid. It was one of the first antiseptics…

A: Since phenol is weak acid so it will feebly ionised . C6H5OH  →C6H5O-      +   H+

Q: A typical aspirin tablet contains 325 mg acetylsalicylic acid. Calculate the pH of a solution that…

A:

Q: Acetic acid (CH3COOH) is a product of many microbial metabolisms. It forms acetate ion and a…

A: Weak acids are not completely dissociated into ions in an aqueous solution. So, when it is dissolved…

Q: Sodium benzoate, NaC6H5COO, is used as preservatives in vinegar, soy sauce, etc. The pH of a 0.10 M…

A:

Q: Calculate the acid ionization for Ka for propionic acid, HC3H5O2. The pH of a 0.012 M aqueous…

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

Q: A solution of sodium cyanide, NaCN, has a pH of 11.90. How many grams of NaCN are in 615 mL of a…

A: Given, The pH of the solution = 11.90 The volume of  NaCN = 615 mL = 0.615 L The molar mass of NaCN…

Q: A 0.018 M solution of salicylic acid, HOC6H4CO2H, has the same pH as 0.0038 M HNO3solution. (a)…

A: Given information,        Concentration of salicylic acid, HOC6H4CO2H = 0.018 M

Q: Aspirin (acetylsalicylic acid) is absorbed from the stomach in the free (non-ionized) acid form. If…

A: Given : pKa of aspirin=3.50 pH of stomach=2.95

Q: Ammonium nitrate NH4NO3 is a salt used in fertilizers and in making matches. The salt is made by the…

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

Q: 1. (1 point) The [H+] of°coffee is about Ix 10. Its pH is 2. (1 point) The [OH-] of baking soda is…

A: Required formulas: pH = -log[H+] pOH = -log[OH-] pH + pOH = 14

Q: |Calculate the pH of a 7.2 × 10 ´ M aqueous solution of aluminum chloride, AIC13. The acid…

A: pH - pH is defined as negative logarithm to the base 10 of H+ ion concentration. Or pH can also be…

Q: What is the pH of a solution that is 0.041 M in NH4Cl?

A: NH4Cl salt can be formed from weak base NH4OH and strong acid HCl. So it is a salt of strong acid…

Q: Calculate the pH of a solution formed by adding 5.00 grams of solid sodium formate, NaCHO₂, to 180.0…

A:

Q: Sodium benzoate, NaC6H5COO (molar mass 144.1 g mol-1) is a common food preservative. The Ka of…

A: We have around us various solutions. It consists of the dissolution of several compounds. Both sides…

Q: The binding of oxygen by hemoglobin in the blood involves the equilibrium reaction:HbH+(aq) +…

A: Hemoglobin is the only protein in the human body that helps in the oxygen transportation throughout…

Q: a) What is the pH of a solution prepared by adding 11.1 mL of 0.50 M NaOH solution to 200. mL of a…

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

Q: Lactic acid, HC3H5O3, is a weak acid; write an equation for its ionization in aqueous solution. If…

A: given Lactic acid,  using PH   calculate the value of H+ , apply the H+=Cα using the alpha value…

Q: what is the pH of a solution prepared by adding 78.69 mL of 0.100 M sodium hydroxide to 50.9 mL of…

A:

Q: 2.Aspirin (acetylsalicylic acid) is absorbed from the stomach in the free (non-ionized) acid form.…

A: The given data contains, pH = 2.59. pKa = 3.5

Q: What is the pOH of a solution prepared by diluting 50ml of 0.06M HCl with 20ml of distilled water?

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

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.