An analytical chemist weighs out 0.406 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. She then titrates this ution with 0.1400 M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 34.9 mL of NaOH solution. Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of significant digits. 01 00 mol X S

Q: Calculate the molar mass of the unknown acid. Be sure your answer has the correct number of…

A: We calculate normality of acid and base then use this formula N1V1 = N2V2

Q: > Calculate the percent of acetic acid in a 20 mL vinegar sample. Titration was used, and it took…

A: Given data is Volume of the vinegar sample = 20 mL  Volume of NaOH used in the titration= 35.19 mL…

Q: If you find that a 69.8 mL sample of vinegar requires 120.31 mL of a 0.504 M solution of NaOH for…

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A:

Q: An analytical chemist weighs out 0.203 g of an unknown diprotic acid into a 250 mL volumetric flask…

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Q: A chemistry student weighs out 0.186 g of sulfurous acid (H, SO,), a diprotic acid, into a 250. mL…

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Q: A chemistry student weighs out 0.146 g of citric acid (H,C,H,O,), a triprotic acid, into a 250. mL…

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Q: A 0.392 g sample of a monoprotic acid is dissolved in water and titrated with 0.120 M KOH. What is…

A: We have to calculate the molar mass of acid.

Q: 10.A 0.1268 g sample of a monoprotic weak acid was dissolved in 25 mL of water and titrated with…

A: Given: Molarity = 0.0625 M Volume of base = 17.9 mL mass of sample = 0.1268 g The reaction can be…

Q: A solution of HCl was left out in the lab, but the concentration is unknown. You decide to titrate…

A: Titration is a type of volumetric analysis which is used to determine the concentration of an…

Q: The buret is filled with 0.1475 M NaOH. The beaker has 25.00 mL of 0.1276 M HCl. Predict what…

A: Solution:

Q: A 25.0 mL volume of HCl solution of unknown concentration is titrated with a 0.154 M NaOH solution.…

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Q: sample Own oncentration, with phenolphthalein as an indicator. t was titrated to the end point with…

A: Molarity is the number of moles of solute present per litre of solution.

Q: A sample of 5.00 mL of the HCI received from a tanker is diluted to 250 mL in a volumetric flask. A…

A: 5ml is taken from the tanker and diluted to 250ml. 30.18ml of 2.012M NaOH solution is needed to…

Q: Explain why these alkyl halides form carbocations at different rates. Your answer should use some…

A: Both the carbocations formed in the chemical reaction of alkyl halides are tertiary carbocations.…

Q: An analytical chemist weighs out 0.127 g of an unknown triprotic acid into a 250 mL volumetric flask…

A:

Q: If you start with a solid acid that can be dissolved in water, you can determine the molar mass of…

A: Given that : Mass of acid = 0.447  Volume of water = 10 mL = 0.01 L Volume of base (NaOH) = 18.57 mL…

Q: 0.644 g of wood bleach, which contains oxalic acid, H2C2O4, was placed in an Erlenmeyer flask.  The…

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Q: An experiment is carried out by titrating 31.8 mL of a 0.340 M potassium hydroxide solution with…

A: Reaction involved is : KOH + HBr ---> H2O + KBr Volume of KOH = 31.8 ml  Molarity of KOH = 0.340…

Q: A group of students working in a chemistry lab is planning a procedure to neutralize 25.0mL of 2.0 M…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: A chemistry student weighs out 0.0918 g of hypobromous acid (HBrO) into a 250. mL volumietric flask…

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Q: concentrated sulfuric acid. The sulfuric acid reacts with the copper(II) carbonate to produce a blue…

A: The question is based on reaction Stoichiometry. we have to determine the concentration of copper…

Q: A student titrates a weak acid with 0.100 M NaOH, adding 31.65 mL before a dark pink color is seen.…

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Q: A 15.5 mL sample of 0.215 M KOH was titrated with a weak acid. It required 21.2 mL of the acid to…

A: The Problem:Given: Volume of KOH = 15.5 mL                  ( 3 significant figures)Concentration…

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A: We should equal equivalent of both acid and NaOH ion to volume of NaOH Equivalent =…

Q: A 1.146 g sample of weak acid is dissolved in 164.2 mL of water and titrated with 0.248 M NaOH to…

A: Given, mass of weak acid = 1.146 g Volume of weak acid = 164.2 mL Concentration of NaOH = 0.248 M…

Q: An analytical chemist weighs out 0.244 g of an unknown diprotic acid into a 250 mL volumetric flask…

A:

Q: A chemistry student weighs out 0.0955 g of ascorbic acid (H,C,H,O6), a diprotic acid, into a 250. mL…

A: Molar mass of ascorbic acid = 176.12 g/mol mass o f ascorbic acid = 0.0955 g Number of moles of…

Q: An analytical chemist weighs out 0.099 g of an unknown diprotic acid into a 250 mL volumetric flask…

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A:

Q: An analytical chemist weighs out  0.149g  of an unknown diprotic acid into a  250mL  volumetric…

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Q: Suppose you are performing a titration. At the beginning of the titration, you read the titrant…

A: we have to calculate volume of titrant required

Q: What is the HOCl concentration in a solution prepared by mixing 46.0 mL of 0.190 M KOCl and 46.0 mL…

A: KOCl and NH4Cl dissociate in water to form the following ions. KOCl(s) →water K+(aq)  +…

Q: A student titrates a weak acid with 0.100 M NaOH, adding 34.84 mL before a dark pink color is seen.…

A: Calculation of no. of mol of NaOH: No. of mol=Molarity×Volume=0.100 mol/L×34.84×10-3 L=3.484 ×10-3…

Q: Titration of a 20.00 mL sample of acid rain required 4.13 mL of 0.08424 M KOH to reach the end…

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A: Given:-analytical chemist weighs = 0.127 gMolarity = 0.1800MV = 9.3 mLCalculate molar mass of the…

Q: A chemistry student weighs out 0.361 g of ascorbic acid (H₂C H₂O), a diprotic acid, into a 250. ml.…

A:

Q: You have a solution of NaOH of unknown concentration.  A 15.98 mL sample of the NaOH solution was…

A: Concentration of NaOH = To be determined Volume of NaOH = 15.98 mLMolarity of HNO3 = 0.377 MVolume…

Q: A chemistry student weighs out 0.441 g of citric acid (H,C,H,0,), a triprotic acid, into a 250. mL…

A: Here we first calculate the molarity of the acid then use neutralization rule at equivalence point.

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A: According to the question we have, The mass of unknown triprotic acid is given by = 0.032 g. The…

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Q: the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?

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.