In a volumetric analysis experiment, an acidic aqueous solution of methanol (CH3OH) is titrated with a solutloh of po dichromate (K2Cr207)according to the following balanced chemical equation: 2K2Cr207(aq) + 8H2SO4(aq) + 3CH3OH(aq) ------> 2Cr2(SO4)3(aq) + 11H20() + (aq) + 2K2SO4(aq) What volume of 0.00181 M K½Cr2O7 is required to titrate 1.75 g of CH3OH? Hint: Convert 1.75 g CH3OH into its moles , then using the equation convert it to moles of K2Cr207. use the molarity of K2Cr,O7 to convert it into its volume.

Q: When an aqueous solution of potassium phosphate, K3PO4, is added to an aqueous solution of iron(III)…

A:

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.260M silver…

A: Given,  Concentration of silver nitrate is = 0.260 M. Mass of fluid is = 21 g  Final mass of product…

Q: An exchange reaction is carried out using a soluion of aqueous lead (II) nitrate. A percipitate is…

A: Lead nitrate or PbNO32 reacts in presence of sodium hydroxide, and forms a precipitate of lead…

Q: A stock solution of potassium permanganate (KMNO4) was prepared by dissolving 10.0 g KMNO4 with DI…

A: To solve this problem we will first calculate the number of moles of KMnO4   Then Molarity will be…

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.5000M silver…

A:

Q: In the “Methodé Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine.…

A: 750 ml Of grape juice is allowed for fermentation untill 12.5% by volume of ethanol. Density of…

Q: Which of the following compounds will have the state symbol (aq) when mixed with water? Remember…

A:

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(II) hydroxide…

A: The balanced reaction taking place is given as, a) Given: Mass of Rh2(SO4)3 = 0.650 g. And mass of…

Q: In a food and drink industry, sulphur dioxide is often used as a preservative. By gravimetric…

A: Sulfur dioxide is a widely used preservative and antioxidant in food items and drinks. Healthy…

Q: 2) Hydrogen peroxide (H2O2) reacts with the permanganate ion (MnO4) in acidic solution according to…

A: a.

Q: Another component of acid rain is nitric acid, which forms when NO2, also a pollutant, reacts with…

A: The given reaction is,

Q: Aqueous sodium hypochlorite (NaOCl, household bleach) is a strong oxidizing agent that reacts with…

A:

Q: When 80.5 mL of 0.642 M Ba(NO3)2 are mixed with 44.5 mL of 0.743 M KOH, a precipitate of Ba(OH)2…

A: Molarity: Molarity is defined as the number of moles of solute per litre of solution. It is given…

Q: The Bayer process is the formation of aluminum hydroxide from metallic aluminum and sodium hydroxide…

A: The Bayer process , Al(s)+ 3NaOH(aq) -->Al(OH)3(s) + 3Na(aq)

Q: To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1700M…

A: The reaction taking place is given as, => Given: Concentration of NaOH taken = 0.1700 M Mass of…

Q: To measure the amount of chlorine in a well-boring fluid, an analytical chemist adds 0.180M silver…

A:

Q: Thioridazine, C21H26N2S2, is a pharmaceutical agent used to regulate dopamine. A chemist can analyze…

A: The reaction taking place is  SO42- (aq, from thioridazine) + BaCl2 (aq) --> BaSO4 (s) + 2 Cl-…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Given the volume of the ground water sample contaminated with CdCl2(aq) = 200. mL  Molarity of…

Q: KHP (aq) + NaOH (aq) NaKHP (aq) + H20 (1) Trial V; (mL) Vf (mL) 1 33.87 45.73 A student masses out…

A: Given mass of KHP = 1.019 g Molar mass of KHP = 204.22 g/mol Number of moles of KHP = 1.019/204.22 =…

Q: The spectator ions in the reaction between aqueous hydrochloric acid and aqueous calcium hydroxide…

A:

Q: The following chemical reaction takes place in aqueous solution: Fe, (SO.),(aq)+3 (NH,),S(aq)…

A: We have to predict the net ionic equation for the given reaction .

Q: What kind of reaction is this if you said this was a precipitation write down the chemical formula…

A: The given reaction

Q: What percentage of the mixture was CaSO4 if a 4.550g solid mixgure containing CaSO4 is dissolved in…

A: Please find the answer attached as handwritten note .

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: The solution is provided in the next step:

Q: A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A:

Q: (ii) A student was given 400 cm of aqueous ammonia solution, NH, (aq). The student was asked to…

A: The balanced reaction given is: 2NH3(aq)+H2SO4(aq)→(NH4)2SO4 Conversion unit: 1 L=1 dm31 L=1000 cm3…

Q: In a biochemical assay, a chemist needs to add 3.81 g of glucose to a reaction mixture. Calculate…

A: Molar mass of Glucose is 180.2 g/mol. Calculation of no. of mol of Glucose:

Q: CaCO3 + HCl →CO2 + CaCl2 + H2O Suppose you collect a 5.00 g sample of impure limestone and want to…

A:

Q: Lead ions can be precipitated from solution with KClKCl according to the following reaction:…

A:

Q: A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric…

A: Given: Sulfuric Acid is limiting reagent, 39.5 grams of barium sulfate are produced. Molar mass of…

Q: A chemist was employed to analyse a particular lawn fertiliser, and dissolved 15.0g of the sample in…

A: the solution is as follows:

Q: To determine the amount of iron in a dietary supplement, a random sample of 15 tablets weighing a…

A: Given that  Mass of Fe2O3 = 0.355g  Molar mass of Fe2O3 = 159.69 kj/mol

Q: QUES A certain compound was known to contain calcium and chlorine. A sample that weighed 2.78g was…

A: Mass of sample taken = 2.78 g Mass of CaO formed by decomposition of calcium oxalate = 1.40 g

Q: You have an aqueous solution containing one or more of the following anions CO32*, CI', r and SO42.…

A: Here, the ions present are: CO32-, Cl-, I- and SO42-. To the above ions, Ba(NO3)2 is added, a…

Q: A fertilizer railroad car carrying 34,300 gallons of commercialaqueous ammonia (30% ammonia by…

A: In order to calculate the amount of citric acid required to neutralize the spill we first write down…

Q: The Ca in a 200.0-mL sample of natural water was determined by precipitating the cation as CaC,O4…

A: Mass of empty crucible ( A )= 26.6002 g  Mass of crucible + CaO ( B) = 26.7134 g    Mass of CaO =  B…

Q: To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1700M…

A: Given data,Molarity of NaOH=0.1700 MMass of sample=23.00 gMass od Ni(OH)2 produced=0.30 g

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A:

Q: Write the balanced NET ionic equation for the reaction when aqueous aluminum nitrate and aqueous…

A: To write net ionic equations we follow these rules : 1) Write the balanced molecular equation with…

Q: What is the balanced chemical equation for the reaction used to calculate AH of BaCO,(s)? If…

A: The question asks to write the chemical equation for the formation of BaCO3(s). Before writing the…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A:

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

A: In the given precipitation reaction, Amount of Rh2(SO4)3 used = 0.540 g Amount NaOH used = 0.209 g

Q: For a precipitation reaction to be useful in a gravimetric analysis, the product of the reaction…

A: Kc > 1 for the product of the reaction must be insoluble and reaction is spontaneous in the…

Q: Lead ions can be precipitated from solution with KCI according to the following reaction: Pb (ag) +…

A: Given data mass of KCl = 28.7 g mass of Pb2+ = 25.8 g Reaction : Pb2+ + 2 KCl → PbCl2 + 2 K+…

Q: The concentration of acetylsalicylic acid, C9H8O4, in aspirin tablets is determined by hydrolyzing…

A: Solution A stock resolution could be a focused resolution which will be diluted to some lower…

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Given reaction: FeCl2 (aq)  + 2AgNO3 (aq)  ----> 2AgCl(s)  + Fe(NO3)2 (aq)  Volume of ground…