A gravimetrical analysis is done with an unknown sample containing CaCl2. A 0.5020-g solid mixture is dissolved in water and treated with an excess of Na2CO3, resulting in the precipitation of 0.6168 g of CaCO3. CaCl,(aq)+Na2CO3(aq)-CaCO3(s)+2N2CI(aq) What is the mass of CaCl2 in the mixture? 0.6839g 0.6168g 100.09g O 120.3g

Q: An analytical chemist weighs out 0.344 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given: Mass of acid = 0.344 g Molarity of NaOH = 0.0700 M Volume of NaOH = 65.5 mL = 0.0655 L

Q: Vinegar is sold as a standardized solution of 5.00% by mass acetic acid in water. Assuming the…

A: Given that vinegar is  5.00%  by mass acetic acid in water. i.e. 5 g of acetic acid (CH3COOH) is…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00L of 2.00MAgNO3(aq) with 1.00L…

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Q: A 30.7 g sample of a mixture of KNO3 and Mg(NO3)2 is treated with an excess of aqueous Na2CO3.  All…

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Q: A solution is prepared by dissolving 3.2 grams of NaCl (MM=58.44 g/mol) in enough water to make…

A: The molarity is a concentration term which is explained as the number of moles of solute dissolved…

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: For the analysis of unknown soda and vinegar samples, 25.0 mL soda and 1.0 mL vinegar samples were…

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

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Q: The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same…

A: Solution : % (w/v) = mass of solute / volume of solution × 100 36 % = mass of sucrose / 645 ml So,…

Q: An analytical chemist weighs out 0.123 g of an unknown monoprotic acid into a 250 mL volumetric…

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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: An aqueous solution of nickel(II) nitrate, Ni(NO3)2, is made by dissolving 8.96 grams of nickel(II)…

A: Weight / Volume % is defined as the mass of solute present in 100 mL of Solution.

Q: grams of aspirin tablets are dissolved in water and titrated with the NaOH from an initial volume of…

A:

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00L of 2.00MAgNO3(aq) with 1.00L…

A: Given: Concentration of AgNO3 = 2M Concentration of NaCl = 4M Volume of AgNO3 = 1 L Volume of NaCl =…

Q: An unknown sample containing citric acid (C6H8O7) was analyzed using 0.2347N NaOH. The following…

A: 0.2347 N NaOH   Mass of Unknown = 0.4232 g Initial reading of NaOH = 2.50 mL Final reading of NaOH =…

Q: Consider this UNBALANCED chemical reaction:   NaOH (aq)   +   FeCl3   →    NaCl (aq)   +…

A: To solve this first we have to balanced the chemical equation  3NaOH (aq)   +   FeCl3 (aq)    →   3…

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: 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: A 12.7 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: Given data,Mass of sample=12.7gMolarity of NaOH=0.325MVolume of NaOH=24.2mL=0.0242L

Q: The equation for the reaction of copper and dilute nitric acid is: 3Cu + 8HNO3 ⟶⟶ 3Cu(NO3)2 + 2NO +…

A: Answer :-  Volume of Nitric acid (HNO3) solution which contains 27.0% HNO3 by mass and has a density…

Q: For the analysis of unknown soda and vinegar samples, 25.0 mL soda and 1.0 mL vinegar samples were…

A: During the process of titration, titrant is added to the solution of analyte until the number of…

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

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Q: Weight of filter paper = 0.756 g Weight of filter paper + barium sulphate precipitate = 0.990 g…

A: Result and Discussion: In this experiment, Gravimetric analysis is used to calculate the proportion…

Q: Chemists often prepare dilute solutions by mixing a more concentrated solution with additional…

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Q: A student added 1.28 g of sodium carbonate monohydrate and 1.28 g of calcium chloride separately…

A: Chemical equation of the given reaction is:                                      Na2CO3(aq) +…

Q: What is the concentration of sodium chloride in the final solution if 18.50 mL of 0.125 M BaCl2…

A: From the moles of sodium chloride we can calculate the concentration of sodium chloride.

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: A sample of potassium phosphate (K3PO4) is added to 15.0 mL of 0.050 M silver nitrate (AgNO3),…

A: Given: Molarity of AgNO3 = 0.050 M Volume of AgNO3 = 15.0 mL Molar mass of Ag3PO4 = 418.58 g/mol

Q: An analytical chemist weighs out 0.118 g of an unknown monoprotic acid into a 250 mL volumetric…

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Q: An analytical chemist weighs out 0.181 g of an unknown diprotic acid into a 250 mL volumetric flask…

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Q: 1.45-g sample of oxalic acid, H2C2O4, is dissolved in distilled water to make 50.00 mL of aqueous…

A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a O.100…

A: Dear student, in the given question, the NH4SCN solution is being diluted. Dilution is done by…

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

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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: 4) Write a chemical equation describing the dissolution of Ba(NO3)2 in water. To give you an example…

A: Given, Mass of Ba(NO3) is 41.9 grams. Volume of solution is 495 mL.

Q: 1 Solutions of cyanide salts are still widely used in the extraction of gold metal from its ores. It…

A: Two numerical problems based on extraction of ore, which are to be accomplished.

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The final answer is reported in the same number of significant figures as does the error.

Q: An aqueous solution of sodium chloride,NaCl , is made by dissolving 1.01 grams of sodium chloride in…

A: Weight/volume percentage= Mass of soluteVolume of solution×100%

Q: A Chemistry Student Trainee at a certain University Chemical Laboratory was instructed by the…

A: Given: Normality=0.25 NVolume=40.0 mL To find: Mass of Potassium acid phthalate

Q: 0.2265 g pure sample Nacl was dissolved in water, the added to it 60 ml of AgNO3 solution. The…

A: The question is based on the concept of titrations. we have been given mass of sodium chloride which…

Q: A neutralization reaction occurs when phosphoric acid reacts with sodium hydroxide solution.…

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Q: The reaction of NaOH and HCl produces aqueous NaCl as a product.  You are assuming that the small…

A: Sodium hydroxide and hydrochloric acid are reacted to give sodium chloride which is salt and water.…

Q: A solution of ethanol (C2 H5 OH) in water is prepared by dissolving 75.0 mL of ethanol (density =…

A: Given,Volume of ethanol, C2H5OH = 75.0 mLDensity of ethanol = 0.79 g/cm3 = 0.79 g/mL     (1 g/cm3 =…

Q: 50.020 g sucrose were used to prepare 300.0 mL of solution (sp. gr. = 1.17). What is the % by mass…

A: Given, 50.020 g sucrose were used to prepare 300.0 mL of solution (sp. gr. = 1.17).

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The strength of an unknown solution can be calculated by the following formula: V1S1 = V2S2 Where,…

Q: For the analysis of unknown soda and vinegar samples, 25.0 mL soda and 1.0 mL vinegar samples were…

A: Given data,Mass of KHP=0.85gMolar mass of KHP=204.22g/molVolume of NaOH for…

Q: An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given data is as follows: The mass unknown diprotic acid = 0.264 g    The volume of water = 250 mL =…