A sample of soda ash (impure Na2CO3) is titrated with 0.5000 N H2SO4. If the sample weighs 1.1000 g and requires 35.00 mL of  the acid for complete neutralization, what is the %Na2CO3 in the ash assuming no other active component is present?

Q: What volume (in ml) of 0.829 M Ca3(PO4)2 required to provide 0.0186  moles of Ca2+ ions?

A: Given data concentration of Ca3(PO4)2=0.829M Moles of Ca+2= 0.0186 Volume of Ca3(PO4)2=?

Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

Q: A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given that -  Mass of Silicon dioxide SiO2 =  3.1754 g  Percentage of ultrapure silicon = 99.98%…

Q: "If you begin with 94.6 mL of 0.731 M KCl(aq) solution and mix it with 65.6 mL of 0.704 M…

A: Given, KCl solution Concentration of KCl solution = 0.731 M = 0.731 mol/L Volume of KCl solution =…

Q: A student weighs out 1.215 g of an impure KHP, dissolves the sample in 100. mL DI water and titrates…

A: kindly find the answer attached

Q: A small iron pan was analyzed by dissolving a 11.1321 g sample in HCl. The resulting solution was…

A: Given, mass of Fe3O4 = 5.1231 g molar mass of Fe3O4 = 231.533 g/mol !! Calculate the moles of Fe3O4…

Q: When aqueous solutions of K₂SO4 and CrCl3 NiBr2 and AgNO3 Li₂CO3 and Csl O Nal and KBr O KOH and…

A: In a double displacement reaction if one of the product is soluble and another is insoluble then…

Q: (a) A strontium hydroxide solution is prepared by dissolving12.50 g of Sr1OH22 in water to make…

A: Given:   The mass of strontium hydroxide is 12.50 g. The volume of strontium hydroxide is 50.00 mL.…

Q: 2. 19.32 mL of 0.500 M NaOH solution is required to exactly neutralize a 10.00 mL sample of vinegar.…

A:

Q: 3) If 50.00 mL of 0.500 M Ca(OH), was reacted with 45.75 mL of a HC,H,O, solution, what is the…

A:

Q: O A chemical engineer determines the mass percent of iron in an ore sample by converting Fe to Fe in…

A: The balanced reaction taking place is given as, Given : Concentration of KMnO4 = 0.03190 M Volume…

Q: 5.587 grams of Pb(NO3)2 are reacted with 5.587 grams of Na2S, and the resulting precipitate is…

A: The given reaction is as follows. Pb(NO3)2aq+Na2Saq→2NaNO3aq+PbSs The precipitate formed in this…

Q: If 0.1297 g  of sodium oxalate, Na2C2O4, requiresof a 48.59 mL  KMnO4 solution to reach the end…

A: Moles of sodium oxalate(Na2C2O4) = mass/molar mass = 0.1297g/133.99mol = 0.00096 When sodium oxalate…

Q: A 0.5382 g sample containing sodium bicarbonate was dissolved and titrated with standard 0.1263 M…

A: Here acid base neutralization reaction will takes place in which one equivalent of HCl required for…

Q: In 2014, a major chemical leak at a facility in West Virginiareleased 7500 gallons of MCHM…

A: Molarity is the concentration unit , which is defined as moles of solute dissolved in litre of the…

Q: If 40.5 g of NaI (MM = 149.89 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Molarity is defined as the number of moles per L of the solution.

Q: The KCIO3 in a 0.1862 g sample of an explosive was determined by the reaction with 50.00 mL of…

A: The balanced equation for the back titration of Fe2+(aq) with Ce4+(aq) is: Fe2+(aq) + Ce4+(aq) →…

Q: the following acid-base neutralization, 1.68 g of the solid acid HC6H5O (94.12 g/mol) neutralized…

A: Moles of acid = mass / molar mass = 1.68 / 94.12 = 0.01785 approx Since from the reaction, 1 mole of…

Q: A 0.7785 g sample containing hydrazine (N2H4, rocket fuel) was dissolved and diluted to 250.0 mL in…

A: Answer: This question is based on stoichiometric calculation where we have to convert the moles of…

Q: Vinegar contains acetic acid (HC2H3O2), which is responsible for its acidity. In one analysis of a…

A:

Q: If you prepare 25 mL of a solution with 100 mM Na2SO4 and another solution with 0.5 L of 30mM BaCl2,…

A: The reaction is        Molarity = 100 mM Volume = 25 ml Moles of Na2SO­4 = Molarity × Volume…

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

A: The calcium in a 200.0-mL sample of natural water was determined by precipitating the cation as…

Q: A sample of pearl ash (impure K2CO3) is titrated with 0.2500 N HCl. If the sample weighs 1.1000 g…

A: Normality is defined as the amount of solute expressed in the number of gram equivalents present per…

Q: The aluminum in a 1.520-g sample of impure ammonium aluminum sulfate was precipitated with aqueous…

A: Given data : Mass of sample = 1.520 g  Mass of Al2O3 = 0.2001 g

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

A: The mass of the CaSO4 sample is =  4.550 g The mass of BaSO4 precipitate is = 0.6168 g The percent…

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: The mercury in a 1.9458 g sample was precipitated as Hg5(IO6)2  by treatment with an excess of…

A: Given  mass of sample = 1.9458 g mass of precipitate Hg5(IO6)2 = 0.5218 g    Required data -…

Q: A student dissolved 4.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took…

A: Given, 4.00g of Co(NO3)2 is dissolved in 100mL of water. The initial moles of Co(NO3)2 in the…

Q: 1. H2SO4. The resulting solution contained excess acid and required 15.85 mL of 0.09850 M NaOH for…

A: The balanced equations are   CaCO3 + H2SO4 ----------> CaSO4 + CO2 + H2O    H2SO4 + 2 NaOH…

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: Given: Hardness=175 mg CaCO3/L

Q: A sample of fuming suifuric acid containing only SOs and sulfuric acid weighs 1.400 grams and…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In 2014, a major chemical leak at a facility in West Virginiareleased 7500 gallons of MCHM…

A: a. The volume of water in the first part of the Elk River is calculated as,

Q: Is K2S soluble in water? If so, what ions are produced

A: K2S is a ionic compound ,  its name is potasium sulfide and it is inorganic compound , it is…

Q: A student dissolved 5.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took…

A: 5 grams of Co(NO3)2 is dissolved in 100 mL to make a stock solution. No. of moles = MassMolecular…

Q: 16.792 g of Ba(OH)2 (171.342 g.mol) is weighed out and carefully dissolved to make a 500.00cm…

A: Provided amount of  Ba(OH)2=16.792g Molar mass of Ba(OH)2= 171.342g/mol Initially volume of solution…

Q: How many grams of pure Na2CO3 must be weighed and dissolved in a solution, if you are to prepare a…

A: Given-> Normality of HCl = 0.1478 N Volume of HCl = 61.75 ml Molecular weight of Na2CO3 = 106…

Q: If you prepare 25 mL of a solution with 100 mM Na2SO4 and another solution with 0.5 L of 30 mM…

A: The reaction is

Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

Q: Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory to…

A: 1. A process in which an acid reacts with a base and forms a salt, is called neutralisation…

Q: 6. A 0.4622-g sample of potassium hyd rogen phthalate was dissolved in 50 mL of deionized water and…

A: The molarity of a solution is the ratio of number of moles of a substance to the volume of solution…

Q: CrCl3(s) + AgNO3 (aq)  AgCl(s) + Cr(NO3)3(aq) A 0.810 g sample of impure CrCl3 was dissolved in…

A: Given data,Molarity of AgNO3=0.165MVolume of AgNO3=45.5mL=0.0455LMass of impure CrCl3=0.810g

Q: 2. 19.32 mL of 0.500 M NaOH solution is required to exactly neutralize a 10.00 mL sample of vinegar.…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as…

Q: Fe(I) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the…

A: Consider the given balanced reaction as; Reaction:      4 FeOH+ aq + 4 OH- aq + O2 g + 2 H2O l → 4…

Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

Q: The alcohol content in a 10.0 g sample of blood from a driver required 4.23 mL of 0.07654 M K2Cr2O7…

A: The volume of K2Cr2O7 = 4.23 mL                                       = 4.23×10-3 L Molarity of…

Q: You have identified by titration that a 1.78g sample of bleach contained 90.2mg of NaOCl. What is…

A: Mass percent is the ratio of mass of NaOCl to the mass of sample

Q: To prepare 50 mL solutions of 0.01 M KMnO4 in water (calculation to prepare chemicals in…

A:

Q: A sample of limestone weighing 1.005 grams is dissolved in 75.00 mL of 0.250 M hydrochloric acid.…

A: The no of moles of solute taking part in a reaction can be calculated by the following formula. no…

Q: A sample of fuming suifuric acid containing only SO. and sulfuric acid weighs 1.400 grams and…

A: Given: Mass of mixture = 1.400 g. Concentration of NaOH = 0.850 N = 0.850 M…

Q: 3. A 0.709 g sample of H2C2O4:2H2O is dissolved in water and titrated to a phenolphthalein endpoint…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".