A pharmacist is identifying the saponification value of corn oil in the lab. She weighs 1.8 g of corn oil and saponified with 25 mL of 0.4 N KOH which require 9 mL of 0.5N HCl to titrate the excess KOH. She performs blank determination, 20 mL of 0.5 N HCl was required to titrate the corn oil. What is the saponification value of the corn oil? Does the sample comply with the USP requirement? Use this formula to work your result Saponification Value = (Vblank - Vsample)N of HCl56.11/Sample weight (g)

Q: The identity of an unknown monoprotic organic acid is determined by titration. A 0.455 g sample of…

A: Given, mass of sample of organic acid = 0.455 g Molarity of NaOH solution = 0.100 M = 0.100 mol/L…

Q: A student weighs out 0.9854 g of Na2CO3 unknown and dissolves it in 25.00 mL of deionized water. A…

A: Answer % of Na2CO3 in the unknown = 54.05% Formulas No.of moles                           = Given…

Q: The next 9 questions are related to the titration of 40.00 mL of a 0.0900 M acetic acid solution…

A: The balanced equation for the given titration reaction is,

Q: In a titration of HCl with NaOH, the indicator solution used is called Phenolpthalein and it turns…

A: Phenolphthalein : Phenolphthalein is an indicator which is generally used in acid-base titrations.…

Q: What is the pH of a buffer solution that contains 0.25 M HPO42 ar 0.50 M H2PO4? Round your final…

A:

Q: Calculate the concentration of an HCl solution if 100.0 mL of the HCl required 33.00 mL of 0.2000 M…

A:

Q: During the titration of 20.0 ml 0.108 M CH3COOH (Acetic acid solution), 15.0 ml of 0.099 M NaOH was…

A: 20.0 mL of 0.108 M CH3COOH is titrated with 15.0 mL of 0.099 M NaOH solution.Here we have to…

Q: in an experiment, the molecular formula for calcium hydroxide was determined to be Ca(OH)2. In this…

A: Given that : The mass of Ca = 0.050 g The volume of DI water = 150 mL The molarity of HCl = 0.30 M

Q: What is the significance of the equivalence point when titrating a weak acid with a strong base such…

A: Equivalence point: It is a point in titration at which the amount of titrant added is just enough to…

Q: Use a primary standard to determine an unknown concentration using an acid-base titration. Potassium…

A: When KHP and barium hydroxide react with each other,then Following balanced Chemical Reaction…

Q: The following graph shows the pH curve for the titration of 25 mL of a 0.1 M monoprotic acid…

A: An acid is a substance that can increase the concentration of hydrogen ions () in the aqueous…

Q: 1. Answer the following questions for the titration of an aqueous solution of oxalic acid by an…

A: Here we have to write the balanced net ionic equation for the reaction of KOH with H2C2O4 at first…

Q: If 15.0 mL of 0.187 M H2SO4 is titrated with 0.132 M NaOH solution, what volume of sodium hydroxide…

A: We can use the molarity equation to calculate the volume of NaOH solution. k x M1V1 = M2V2 Here, M1…

Q: Consider the reaction of a 20.0 mL of 0.220 M C₅H₅NHCl (Ka = 5.9 x 10⁻⁶) with 12.0 mL of 0.211 M…

A: Explanation: Molarity is defined as moles of solute, which in your case is sodium hydroxide,…

Q: Why is the shape of a titration curve different for the titration of strong acid vs. strong base…

A: The question is based on the concept of titration. we need to draw two different curves for…

Q: A beaker contains a 25 mL solution of an unknown monoprotic acid that reacts in a 1:1 stochiometric…

A: Given : The acid is monoprotic acid. Hence it can be written as HA. Volume of HA solution = 25.0 mL…

Q: The following plot shows two titration curves, each representing the titration of 50.00 mL of 0.100…

A: Answer

Q: A 20.00 mL of of the following acid solutions is to be titrated to the equivalence point using a…

A:

Q: 25.00 mL of a solution containing 25.7 g/L of an unknown acid is titrated with 0.114 M KOH. It takes…

A: At the end point, we know all the acid must neutralized by the base, There is no excess…

Q: Using the table of indicators identify which of the given indicators would be appropriate for the…

A: From the Titration curve it has been seen that initially a fast drop in pH takes place but slows…

Q: An analytical method that is based on determining the volumes of reagent of known strength that is…

A: Volumetric titrations involve measuring the volume of a solution of knownconcentration that is…

Q: Questions 15-20 refer to the same weak base/strong acid (WB/SA) titration. The K₁ of pyridine is 1.7…

A: The question is based on the titrations.  we are titrating a weak base with a strong Acid. we need…

Q: 7-The titration curve shown below describes 14.0 10.0 6.0 40 20 0.0 0.0 5.0 10.0 15.0 20.0 25.0 20.0…

A: Following are the titration curves of strong acid , strong base, weak diaprotic base ,weak diaprotic…

Q: How many milliliters of 8.50×10−2 MNaOHMNaOH are required to titrate each of the following solutions…

A:

Q: A 10.00 Liter (L) sample of HCI requires 35L of 0.100 M KOH. What is the molarity (M) of the acid?

A: Given :-  KOH + HCl → KCl + H2O  Volume of HCl = 10.00 L  Molarity of KOH solution = 0.100 M  Volume…

Q: A beaker contains a 25 mL solution of an unknown monoprotic acid that reacts in a 1:1 stochiometric…

A: Data

Q: H₂CO3 + Mg(OH)2 - →>> MgCO3 + 2H₂O What is the concentration of MgCO3 formed when 50.0 mL of 0.010 M…

A:

Q: A 100.0 mL sample of natural water was titrated with NaOH. The titration required 13.25 mL of 0.1589…

A:

Q: Consider the graph below. What type of titration does it represent? 12 8 2 0+ 0 10 20 30 40 50 60…

A: The correct option is:-                   (B)    A weak base titrated with a strong acid.

Q: A student titrates 0.101mL of citric acid solution using the standardized 0.1M solution (use the…

A:

Q: Q 25 mL of a mixture of NaOH and Na 2 CO 3 was titrated with 0.1 HCI using phenolphthalein indicator…

A:

Q: Cid) was titrated with 45.5 mL of NaOH to reach the second quivalence point. What is the…

A: Molarity is defined as total number of solute present in 1000 ml of solution . For neutralisation we…

Q: When 10.23 ml of an unknown weak acid was titrated, it required 12.08 mL of 0.423M NaOH to reach the…

A: Given that : Volume of NaOH (V1) = 12.08 mL Molarity of NaOH (M1) = 0.423 M Volumes of weak acid…

Q: How many moles of sodium thiosulfate pentahydrate are used in the titration? (use average volume of…

A: Titration (also known as titrimetry and volumetric analysis) is a common laboratory method of…

Q: with a 0.2500M solution of NaOH. The p K of butanoic acid is An analytical chemist is titrating…

A:

Q: In a titration, a 9.9 ml solution of 0.25N HCI is neutralized with 53.7 ml of NAOH. What is the…

A:

Q: Question 4: 20.0 mL of a 0.300 mol / L solution of cyanuric acid (HCN, pKa = 9.21) is titrated with…

A: Given data,Molarity of HCN=0.300mol/LVolume of HCN=20.0mLMolarity of NaOH=0.150mol/LpKa of HCN=9.21

Q: Question 6 of 6 Points possible: 1.00 Not yet answered Consider the generic weak acid HA, for which…

A: To determine which mixture results in a buffer solution, we need to understand that a buffer…

Q: Questions 15-20 refer to the same weak base/strong acid (WB/SA) titration. The K, of pyridine is 1.7…

A:

Q: A 100 mL sample contains Na2CO3 and NaOH. A 25 mL aliquot was taken and phenolphthalein was added as…

A: Phenolphthalein can only detect the neutralization of NaOH and Na2CO3 to NaHCO3.  The balanced…

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.