An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g. Calculate the percentage of sulfur of the salt.

Q: 1.736 g of iron ore is dissolved with acid and precipitated as Fe2O3X.H2O. After the precipitate is…

A: The percentage of the Iron in the sample of iron ore can be calculated as:

Q: A 1.500 g sample containing only BaO (153.3 g/mol) and CaO (56.08 g/mol) was analyzed for its Ba and…

A: Let the mass of BaO in the sample be x g⇒ mass of CaO = (1.5-x) gNumber of moles of BaO in sample=x…

Q: What mass of Ge(OH)4 could be neutralized by 70.00 ml of 0.2468 M H2SO4(aq) solution?

A: Amount of  H2SO4  = 70.0 ml × 0.2468 M            = 0.070 L × 0.2468 mol/L Where 1 ml solution =…

Q: 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in…

A: Amount of Ore obtained Fe=0.8525g Reaction involved  Fe3O4 + 8HCl ----------   Fe+2+2Fe+3 4Fe3O4  +…

Q: In the preparation of Rochelle salt (MW = 282.83 g/mol), 6.6 grams of monohydrated Sodium carbonate…

A:

Q: 3.00- g sample of an alloy of Pb Lead was dissolved in nitric acid (HNO3). Sulfuric acid was added…

A: First Calculate mole by dividing Molar mass to the mass  Then use mole -mole relationship to get…

Q: 0.250g of HI is dissolved in 300. mL of a 0.00520 M solution of Ca(OH)2. (Assume this does not…

A: Number of moles is equal to ratio of mass to molar mass. Number of moles=MassMolar mass Limiting…

Q: In the laboratory you are given the task of separating Pb²* and Fe2* ions in aqueous solution.

A:

Q: 2. 0.4852 g sample of iron ore is dissolved in acid, oxidized to +3 state and precipitated as…

A:

Q: An 8.65-g sample of an unknown group 2A metal hydroxide is dissolved in 85.0 mL of water. An…

A: The point where equivalent quantities are brought together is called equivalence point. The reaction…

Q: In the laboratory you are given the task of separating Ca and Fe" ions in aqueous solution. For each…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: A 1.000 g sample of an aluminum is dissolved, and the sulfate precipitated as BaSO4. The precipitate…

A:

Q: Aluminum in an ore sample is determined by dissolving it and then precipitating with base as Al(OH)3…

A: Given, 0.2385 g of precipitate

Q: 4. What mass of hydrogen sulphate can be prepared from 50.0 g sulphur dioxide, 15.0 g oxygen, and…

A: We have given,  Mass of sulphur dioxide = 50.0g Mass of oxygen = 15.0 g  Mass of water = 980.0g

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: What mass of Glauber’s salt must be used to provide 1.00 mol of sodium sulfate?

A: The chemical formula of sodium sulfate is Na2SO4. The chemical formula of Glauber's salt is…

Q: An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g.…

A: Percentage of sulphur is 13.74% .

Q: 1.000 g sample of an aluminum is dissolved, and the sulfate precipitated as BaSO4. The precipitate…

A: Mass of aluminum or sample containing K2Al2(SO4)3*24H2O initially taken = 1.000 g  All of the…

Q: An aqueous solution of NaCl is treated with an aqueous solution of Silver Nitrate. What would you…

A: Given that -  Aqueous solution of sodium chloride, NaCl  Aqueous solution of silver nitrate, AgNO3…

Q: A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 mL of 1.00…

A: Mass of sample = 0.750 grams Volume of HCl added = 25.0 mL Concentration of HCl added = 1M Volume of…

Q: the reaction of sodium phosphate (Na3PO4) solution with lead (II) chlorate [Pb(ClO3)2] solution…

A: Precipitation reactions occur when cations and anions in aqueous solution combine to form an…

Q: What mass of solid potassium oxalate (K2C2O4), when dissolved in an acidic solution, would be…

A:

Q: In the laboratory you are given the task of separating Ca2+ and Zn2+ ions in aqueous solution. For…

A:

Q: 2AgNO3(aq)+MgCl2(aq)→2AgCl(s)+Mg(NO3)2(aq) What mass of silver chloride can be produced from 1.67 LL…

A: Given Volume of AgNO3 = V =1.66 L Concentration of AgNO3 = M = 0.112M Moles of AgNO3 = V x    M…

Q: A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3…

A:

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: A 1.500 g sample containing only BaO (153.3 g/mol) and Cao (56.08 g/mol) was analyzed for its Ba and…

A: Let mass of BaO in the sample be x g      mass of CaO in the sample = (1.5-x) gNumber of moles of…

Q: In the laboratory you are given the task of separating Ba2+ and Co2* ions in aqueous solution. For…

A: For the reagents listed below we categorized as whether it will form precipitate or not and if so it…

Q: The reaction between aluminium powder and chlorine gas b. The reaction between magnesium oxide…

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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. The neutralization of sulfuric acid by potassium hydroxide. b. The reaction between aluminum…

A: While balancing a chemical reaction we make sure that both the reactant and product side have the…

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Q: موعد التسليم السبت، 0 12:0 ص An impure sample of Na2SO4 weighed 1.562g . A BASO4 precipitate from…

A: The reaction is: Na2SO4+BaCl2→2NaCl+BaSO4 1 mol of Na2SO4 gives 1 mol of BaSO4 142.04 g of Na2SO4…

Q: weight of Mn

A:

Q: What volume of 0.416 M mg(no3)2 should be added to 255ml of 0.102M KNO3 to produce a solution with a…

A: Given, Concentration of Mg(NO3)2 = 0.416M. Volume of KNO3 = 255mL. Concentration of KNO3 = 0.102M.…

Q: A 6.03 g sample of a mixture containing Fe, Pb and Ba) was dissolved in nitric acid (HNO3).  The…

A:

Q: The concentration of gold in seawater is 0.027 ug/L. What mass of goid (in kg) is present in the…

A: Given: The concentration of Gold in sea water= 0.024 ug/L. i.e,  1 Liter of seawater contains =…

Q: grams of Na,cO, (MW=106.g/mole) 2.5543 are placed in volumetric flask and dissolve in water to 500…

A: Answer

Q: A mixture containing FeCl3 and AlCl3 only weighs 750.8 mg. The chlorides were precipitated using…

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Q: weight of Mn ore

A:

Q: Describe a chemical method each for the preparation of the sols of sulphur and platinum in water.

A: Given: Sols of sulphur Platinum in water

Q: After 1,600 grams of an aluminum sulphate sample is dissolved in water, aluminum is precipitated in…

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Q: i'he density of concentrated sulfuric acid containing 94% by mass of H2SO4 is 1.836 g/mL. Calculate…

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Q: 0.9545 g of calcium nitrate salt, Ca (NO3) 2, is weighed, dissolved in concentrated HCl solution and…

A:

Q: In the laboratory you are given the task of separating Cat and Ag* ions in aqueous solution. For…

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Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further…

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Q: 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in…

A: A numerical problem based on isolation of metals, which is to be accomplished.

Q: A sample of 0.6760 g of an unknown compound containing barium ions (Ba) is dissolved in water and…

A: Introduction The mass percentage of any particular compound can be calculated by simply applying the…

Q: A 1.362 g sample of an iron ore that contained FezOawas dissolved in acid and all of the iron was…

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Q: What is the percentage by mass of sand if 15 kg is mixed to make 58 kg of concrete?

A: Mass percent of sand = (mass of sand) × 100 / (mass of sand + mass of concrete)