A 0.338 g sample of an unknown triprotic acid dissolved in water is titrated to the second equivalence point using 22.2 mL of 0.163 M NaOH. Calculate the molar mass of this acid. The correct answer is 187g/mol. a) Explain in detail how to arrive at the answer of 187 g/mol and why certain equations are used. b) Explain why is the answer 187 g/mol and not 280 g/mol?

Q: When 25 .00 mL of 0.1098 M HCl in 40 mL of DI water is titrated against 0.09998 M NaOH, the pH…

A: The pH of a solution describes the acidity or basicity of the solution. If pH is greater than 7, it…

Q: 136.7mL of a 0.4800M solution of dimethylamine CH32NH with a 0.3900M solution of HNO3 . The pKb…

A: The question is based on the concept of titrations. we have to calculate pH of the solution at the…

Q: A solution is made by mixing 205 mL of 0.100 M formic acid (Ka = 1.7 x 10-4) and 230. mL of 0.100 M…

A:

Q: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is titrated with 0.500 M HNO3. Calculate the pH after…

A: Given: Volume of NH3 is 75 mL Molarity of NH3 is 0.200 M Molarity of HNO3 is 0.500 M Volume of HNO3…

Q: A student was given a 0.15 M solution of an unknown diprotic acid H2A and asked to determine the Ka1…

A:

Q: What is the resultant pH after mixing 30.0 mL of 0.50 M HCI with 20.0 mL of 0.90 M NaOH? Express…

A: Given: Concentration of HCl = 0.50 M Concentration of NaOH = 0.90 M Volume of NaOH solution = 20.0…

Q: A 5.00g quantity of a diprotic acid was dissolved in water and made up exactly 250 mL. Calculate the…

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

Q: An analytical chemist is titrating 143.9 mL of a 0.6100M solution of acetic acid (HCH3CO₂) with a…

A: Given data : Concentration of HCH3CO2 = 0.6100 M Volume of HCH3CO2 = 143.9 mL Concentration of NaOH…

Q: An analytical chemist is titrating  189.6mL  of a  0.6500M  solution of butanoic acid  HC3H7CO2…

A: Calculate the number of moles of butanoic acid and KOH. Number of moles = Concentration (M) × Volume…

Q: In another experiment, the student titrated 50.0mL of 0.100MHC2H3O2 with 0.100MNaOH(aq). Calculate…

A: At equivalence point, the number of moles of acetic acid will be equal to that of NaOH and whole…

Q: At the equivalence point of an experiment where a strong acid is titrated using a strong base, which…

A:

Q: 50 ml of an ammonia solution with a specific weight of 1.42 and a purity of 52.2% mixed with another…

A: For the 1st ammonia solution total volume 50 ml, specific weight = 1.42; purity of the solution is…

Q: 50 ml of an ammonia solution with a specific weight of 1.42 and a purity of 52.2% mixed with another…

A: pH is negative logarithm of Hydrogen ion concentration

Q: Calculate the pH at the endpoint of the titration, when 30.0 mL of 0.100M NaOH have been added to…

A: First the moles of NaOH and acetic acid present are calculated.

Q: 1. The acid used in the titration is a weak diprotic acid. Briefly explain: 1. how you know it’s…

A: Given :  triration curve between acid and sodium hydroxide base.  To find : Properties of acid that…

Q: How many liters of 0.200 M sodium hydroxide do you need to titrate 0.900 L of a 0.100 M diprotic…

A:

Q: 0.5043 g of unknown acid was titrated with 27.35 mL of 0.5645 N NaOH solution. Calculate the…

A: Given-> Weight of unknown acid = 0.5043 gm Molecular weight = 98.00gm/mole Volume of NaOH = 27.35…

Q: An analytical chemist is titrating  104.6mL  of a  0.8600M  solution of butanoic acid  HC3H7CO2…

A:

Q: The final volume of buffer solution must be 100.00 mL and the final concentration of the weak acid…

A: For a buffer, buffer capacity is the pH range = pKa ± 1

Q: An analytical chemist is titrating 160.3mL of a 0.8600M solution of benzoic acid HC6H5CO2 with a…

A:

Q: An analytical chemist is titrating 64.7 mL of a 0.8500M solution of acetic acid (HCH₂CO₂) with a…

A: Here we are required to find the PH of the solution .

Q: 2.500 g of an unknown achiral primary amine is dissolved in enough water to yield a 50.00 mL…

A: Given : mass of primary amine used = 2.500 g concentration of HCl used = 0.9250 M And volume of HCl…

Q: 1. When 50.00ml of 1.000M HCl is titrated with 0.750M NaOH, the pH increases. What volume of NaOH is…

A: Titration is the process that helps to determine the concentration of a substance reacting in a…

Q: A solution of dimethylamine is prepared by dissolving 1.3525 grams of dimethylamine in 25 mL ethanol…

A:

Q: A solution is made by mixing 205 mL of 0.100 M formic acid (Ka = 1.7 x 10-4 ) and 230. mL of 0.100 M…

A: The mixture of a weak acid and its conjugate base or weak base with its conjugate acid will form a…

Q: In a titration, what volume (in milliliters) of 0.250M NaOH is required to neutralize 60.0 mL of…

A:

Q: A pH buffer is a solution that resists changes in pH when acids or bases are added to it—typically,…

A: We have to prepare 7.00 L of pH = 12.00 buffer.

Q: You are titrating a 25.0 mL HCl sample of unknown molarity. It takes 25.4 mL of 0.100M NaOH to reach…

A: Given, Titration of a 25.0 mL HCl sample of unknown molarity. It takes 25.4 mL of 0.100M NaOH to…

Q: The following items are potential problems someone might encounter while performing a titration.…

A: Forgetting to rinse the burette with NaOH solution causes considerable  effect on calculated…

Q: - A 25.00-mL sample of an H,SO4 solution of unknown concentration is titrated with a 0.1322 M KOH…

A: Given :-  Molarity of KOH solution = 0.1322 mol/L  volume of KOH solution = 41.22 mL  volume of…

Q: 50.00 mL of an acetic acid solution is titrated with 0.1000 M NaOH. 23.90 mL NaOH is required to…

A: Given : Volume of acetic acid = 50 ml Volume of NaOH = 23.90 ml Molarity of NaOH = 0.1000M

Q: The end point ( or equivalence point ) your acid / base titration between HCl and NaOH occurred…

A: For an acid-base reaction the equivalence point is  the moles of acid and the moles of base would…

Q: Consider two beakers, containing in the first 1 L of water and in the second a buffer solution…

A:

Q: A student performs a titration of 80.0 mL of a phosphoric acid (H₃PO₄) solution of unknown…

A: In this question, we have to find out the correct answer of given problem by the help of "Acid-Base…

Q: You are titrating 20.00 mL of 0.1000 M acetic acid with 0.1000 M NaOH. Instead of using an…

A: Given that: Concentration of acetic acid[CH3COOH] = 0.1000 M, volume = 20.00 mL Concentration of…

Q: An analytical chemist is titrating 203,7 ml. of a 1.100M solution of butanoic acid (HC,H,Co,) with a…

A: For titration; MAVA=MBVB Where, MA is the molarity of acid, VA is the volume of acid, MB is the…

Q: Your answer is partially correct. A laboratory technician wants to determine the aspirin content of…

A: Given, The Ka= 3.0×10-4 Concentration = 10-5M

Q: 3) 2.0 g of NaOH is dissolved in distilled water to prepare 100 mL solution. 20.0 mL of this…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: 116.2mL  of a  0.5100M  solution of butanoic acid  HC3H7CO2  with a  0.5000M  solution of  NaOH…

A: The question is based on the concept of equilibrium. we have to calculate pH of the solution at the…

Q: An acid–base titration is performed: 250.0 mL of an unknownconcentration of HCl (aq) is titrated to…

A: a) Since the moles of HCl = moles of NaOH as the reaction is  NaOH + HCl -----> NaCl + H2O And…

Q: جموعة ٥ : 50 ml of an ammonia solution with a specific weight of 1.42 and a purity of 52.2% mixed…

A: For the 1st ammonia solution total volume 50 ml, specific weight = 1.42; purity of the solution is…

Q: An analytical chemist is titrating 220.1 mL of a 0.6700 M solution of benzoic acid (HC H₂CO₂) with a…

A: pH of the resulting solution can be calculated by considering the total moles of remaining benzoic…

Q: Chemistry A student conducted a titration experiment in a lab. 50.00 mL of nitric acid (HNO3)…

A: #Q.1: HNO3 is a strong acid, and NaOH is a strong base.  Volume of 0.090 M HNO3(aq) taken = 50.00 mL…

Q: A 0.1-L unbuffered solution needs the pH adjusted from 6.8 to 2. How many microliters of a 6 molar…

A:

Q: Exactly 225 mL of 0.150 M HNO2 are titrated with a 0.150 M NaOH solution.  What is the pH at the…

A: Given that Volume of 0.150 M HNO2 acid = 225 mL = 0.225 L Moles of HNO2 acid = 0.150 M×0.225 L =…

Q: What must be the minimum concentration of hypobromous acid in 1.00L buffer solution of a pH 8.02…

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Q: A 20.0 mL sample of a 0.200 M HBr solution is titrated with a 0.200 M NaOH solution. Calculate the…

A:

Q: Calculate the pH of the following buffer solutions: (a) a solution made by dissolving 2.733 g…

A: a) Given: Mass of KH2PO4 = 2.733 g. Mass of K2HPO4 = 4.508 g. And pKa of H2PO4- = 7.2

Q: An analytical chemist is titrating 98.7 mL of a 0.2300M solution of isopropylamine ((CH3),CHNH,)…

A:

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.