A supply of glacial acetic acid has absorbed water from the air. It must be assayed to determine the actual percentage of acetic acid. 2.000 g of the acid is diluted to 100.00 mL, and 20.00 mL is titrated with a solution of sodium hydroxide. The base solution has a concentration of 0.218 M, and 28.25 mL is used in the titration. Calculate the percentage of acetic acid in the original sample. Write the titration equation to get the mole ratio

Q: If 0.045 g of KHP is used for titration, calculate the molarity (concentration) of the wood ash…

A: Given-> Weight of KHP = 0.045 gram Initial volume = 5.75 ml Final volume = 23.45 ml

Q: Brass is an alloy consisting mainly of copper and zinc. To determine the percentage of copper in a…

A: A numerical problem based on extraction of metal from alloy, which is to be accomplished.

Q: Suppose that extra volume (more than the actual volume) of 0.2 M NaOH solution was used to reach the…

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Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

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Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of…

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Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: It is acid-base titration. We knew that sodium hydroxide is not the primary standard solution. So we…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: The values are given as follows:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Considered that 250 mL of oxalic acid solution is neutralized by the 46.1 mL of sodium hydroxide…

Q: You are going to standardize your sodium hydroxide by titrating with potassium hydrogen phthalate.…

A:

Q: A quantitative analysis for ethanol, C2H60, is accomplished by a redox back titration. Ethanol is…

A:

Q: The Kjeldahl method was used to determine the nitrogen content of a soil sample. 25 g soil sample…

A: Solution: We know Kjeldahl method is used to determine the nitrogen content of the any sample.…

Q: An environmental chemist analyzed the effluent (the released waste material) from an industrial…

A: Given :  Volume of sample = 3.52 ml  Volume of NaOH solution = 10.59 ml  Concentration of NaOH…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The balanced reaction of sodium hydroxide with oxalic acid is given as follows-

Q: To determine the amount of magnetite, Fe3O4 in an impure ore, a 1.5419 g sample is dissolved in…

A: The balance chemical equation can be given as below 2Fe3O4 → 3Fe2O3 The formula weight of Fe3O4 =…

Q: lodine pentoxide is used as a reagent to determine the amount of carbon monoxide present in a…

A: Balanced equation for the reaction of iodine pentoxide, I2O5(g) with CO(g) is: I2O5(g) + 5CO(g)…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

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Q: he Kjeldahl analysis is used to determine the protein content of foods. The food analyzed is heated…

A: The main element that is present in protein in nitrogen, since proteins are made of amino acid that…

Q: Consider a titration where 0.215 M potassium hydroxide is added from a burette to 10.00 mL of…

A: Given information,

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The balanced chemical reaction is given as: H2C2O4 (s) + 2 NaOH (aq) → Na2C2O4 (aq) + 2 H2O (l)

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: Molarity is the number of moles of solute dissolved in per litre of solution. It is denoted by M.…

Q: The analyst wanted to measure the zinc oxide content of a 1.25-g sample. The sample was treated…

A: As per rules, only three questions can be answered: Titrimetric analysis method: Back titration…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Answer :-  Molarity of original H2SO4 solution = 1.207 M…

Q: A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it…

A: Given data Mass of impure KHP = 1.051 g Molarity of NaOH  solution = 0.1101 M Volume of NaOH…

Q: Brass is an alloy consisting mainly of copper and zinc. To determine the percentage of copper in a…

A: The mass of the total sample of brass is given as 2.63 g. The amount of copper present in the sample…

Q: The titration of 25.0 mL of an iron(II) solution required 18.0 mL of a 0.115 M solution of…

A: Net ionic equation for the reaction between iron(II) and dichromate is shown below. Number of moles…

Q: A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained…

A: Given, Volume of Ca(OH)2, V1  =450 mL=450×10-3L=0.450 L Molarity of Ca(OH)2  M1= to find Valency…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The given data is as follows: The mass of oxalic acid = 204 mg = 0.204 g The volume of water = 250…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: No.of milli moles of NaOH added = (10.46 mL) x (0.1792 M) = 1.874 m.mol Required reaction : H2SO4 +…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Dilution :-  If a solution of molarity M1 and volume V1 is diluted by adding water to a solution of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The reaction of oxalic acid and NaOH – H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: A 25.00-mL sample of a commercial vinegar is diluted with de-ionized water to 100.0 mL. Then, a…

A: 18.50ml of 0.1125M NaOH is required. Moles of NaOH = Molarity× Volume                              =…

Q: the calcium in a 5.00ml serum sample is precipitated as CaC2O4 with ammonium oxalate. the filtered…

A: Number of moles of KMnO4 , n = Molarity x volume in L                                              =…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Molarity of standard NaOH solution = 0.1298 M = MNaOHVolume of NaOH used to reach end point = 11.93…

Q: A permanganate solution is prepared by dissolving 20.0123 g KMNO4 in 500 mL of distilled water and…

A:

Q: A quantitative analysis for ethanol, C2H60, is accomplished by a redox back titration. Ethanol is…

A: The explanation is given below-

Q: The nitrogen and protein content of a 0.757 g sample of flour sample was analyzed using Kjeldahl…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A:

Q: A 25.00 mL sample of a vinegar solution is diluted to 250.00 mL with water. Then a 25.00 mL aliquot…

A: Molarity of NaOH = 0.1027 M Volume of NaOH = 22.13 mL Volume of Vinergar = 25 mL

Q: The ethyl acetate concentration in an alcoholic solution was determined by diluting a 10.00-mL…

A: Solution No.of moles of KOH is , n = Molarity * Volume in L…

Q: A student begins a titration experiment by filling her first buret with unknown acid to the 1.12 mL…

A: From given  Both blank 1 and 2 is determined by using volume of acid and base formula It is as…

Q: 1. This is the mass of the substance that is chemically equivalent to a cubic centimeter (cc) of the…

A: Interpretation: To write one word for the following given statements.

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A:

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: Given, Molarity of standard sodium hydroxide (MNaOH) = 0.1834M. Volume of NaOH = 13.96mL. Volume of…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Mass of oxalic acid = 86 mg = 86×10-3 g Molar mass of oxalic acid = 90.034 g/mol Volume of oxalic…

Q: A permanganate solution is prepared by dissolving 20.0123 g KMNO4 in 500 mL of distilled water and…

A: Given: The reaction is as follows, 5H2C2O4+2MnO4-+6H+⇌10CO2+2Mn2++8H2O Molarity of oxalic acid =…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A: The reaction between sulfuric acid and sodium hydroxide is as follows. H2SO4+2NaOH→Na2SO4+2H2O That…

Q: An analytical chemist weighs out 0.063 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: To determine the mass of calcium carbonate present in a 0.125 g sample of chalk, the chalk sample…

A: Acid-base titrations can be used to find the concentration of unknown acid/base by titrating it…

Q: A chemist needs to determine the concentration of a sulfuric acid solution by titration with a…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.