A sample of gallium bromide, GaBr3, weighing 0.165 g was dissolved in water and treated with silver nitrate, AgNO3, resulting in the precipitation of 0.299 g AgBr. Use these data to compute the %Ga (by mass) GaBr3.

Q: A chemist dissolves 1.406 g pure platinum (Pt) in an excess of a mixture of hydrochloric and nitric…

A: Concept introduction: According to stoichiometry, the number of moles of each atom on either side of…

Q: If 60.13g of Nb(s) are added to 125.0ml of a 5.96mL of a 5.96 M solution of HClO4(aq), what is the…

A: Given that -  Mass of Nb(s) = 60.13 g  Volume of HClO4 Solution = 125.0 mL  Molarity of HClO4…

Q: A 0.4567 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride…

A: Mass percentage of an element is the mass of that element divided by the total mass of the compound…

Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: If 64.0 mL of 0.150 M HCl(aq) is needed to neutralize all the NH3(g) from a 2.25 g sample of organic…

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Q: how many grams of calcium nitrate, Ca(NO 3 ) 2 , are needed to react completely with 45.1 g of…

A: First convert mass into mole by divid6 molar mass  Then Mole-mole realtionship to get mole mole of…

Q: What is the maximum mass of iron, in grams, that can be obtained from 651 g of iron(III) oxide?

A: Molar mass of any substance is the mass of 1 mole of that substance. If the molar mass of an atom is…

Q: The molar mass of M(OH)2 formed by the hypothetical metal M, is 144.096 g/mol what is the molar mass…

A: Molar mass of a compound is equal to the sum of the molar masses of all the elements. The molar mass…

Q: If 45.4 mL of 0.25 M HCl(aq) reacts with an excess of Mg(OH)2(aq), what mass of magnesium chloride…

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Q: The aluminum in a 0.805 g sample of an unknown material was precipitated as aluminum hydroxide…

A: Given,Mass of Aluminum = 0.805gMass of Al2O3 = 0.127 g Molar mass of Al2O3 is 101.96g/molMolar mass…

Q: What is the weight of lead nitrate Pb(NO3)2 (molecular weight = 331 g/mol) that %3D must be…

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Q: A sample of 0.3220 g of an ionic compound containing the bromide ion (Br−) is dissolved in water and…

A: Calculate the number of moles of AgBr formed. Number of moles = Given massMolar massNumber of moles…

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: Q2 :- Calculate the percentage of p in the sample of a 0.703 g weight, produced 0.223 g of Mg.P:O7…

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Q: The aluminum in a 0.755 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: In order to evaluate concentration of any particular element available in a certain substance, the…

Q: 9. If 92.8 g of sodium nitrite (NaNO2) are dissolved in 2.3 L of water, the resulting solution has a…

A: Given, Mass of NaNO2 = 92.8 g  Volume of Solution = 2.3 L  Molarity = ?

Q: If 38.5 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to…

A: Given information: Volume of solution = 38.5 mL Mass of precipitate = 0.628 g Atomic Mass : Pb-207,…

Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

A: Please find the attached images for answer

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The solution is given below -

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

A: Given data: Total mass of the sample = 20.505 g  Mass of sample dissolved in Fe(OH)3 = 3.116 g Mass…

Q: If we mix together 100.0 grams of TiCl4 and an excess of H2, TiCl4 + 2 H2 → Ti + 4 HCl what is the…

A: The reaction given is  TiCl4 + 2 H2 → Ti + 4 HCl

Q: What is the molarity of toluene in a solution that is prepared by adding 59.3 g of toluene (CH)…

A: Since we know that  Molarity = number of mole of solute /volume of solution in L  First we calculate…

Q: If 19.3 grams of an aqueous solution of ammonium nitrate, NH4NO3, contains 1.55 grams of ammonium…

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Q: Thallium(I) sulfate is an active ingredient in rat poison. We can analyze a sample for the mass…

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Q: What are the conditions for the precipitation of sulphur from the sample solution in DETERMINATION…

A: Sulphur containing samples in presence of excess BaCl2 solution would precipitate as BaSO4. The…

Q: In the laboratory you are given the task of separating Ba2+ and Zn²+. ions in aqueous solution. For…

A: Ionic compounds termed as salts dissolve greely in water. In certain cases, the solubility of a salt…

Q: For the synthesis of boric acid; 7.94 g of anhydrous borax was taken and 15 mL of water was added…

A:

Q: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

A: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

Q: 5. What is the theoretical yield of MgO from the combustion of 5.25 x1023 atoms of Mg and 4.69 ×1023…

A: Given that: number of atoms of Mg = 5.25×1023 atoms number of atoms of O2 = 4.69×1023 atoms To find,…

Q: A sample of gallium bromide, GaBr2, weighing 0.165 g was dissolved in water and treated with silver…

A: Given, Mass of GaBr2 (gallium bromide) = 0.165 g Mass of silver bromide = 0.299 g Molar mass of…

Q: A 0.5008 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide…

A: The percentage of halogen in an organic compound is estimated by Carius method. The formula to find…

Q: the mass percentage composition of the elements in caffeine, C8H10N4O2.

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Q: When a solid mixture of MgCO3 and CaCO3 is heated strongly, carbon dioxide gas is given off and a…

A: % of MgCO3 = (mass of MgCO3 / mass of sample )*100

Q: Use the concept of molarity to calculate the molarity of a solution prepared by dissolving 25.00 g…

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Q: When a solution of Cu(II) chloride, CuCl2 , is added to a solution of potassium sulfide, K2S, a…

A: Given that,  Solution of CuCl2  and K2S, when Copper chloride solution is added to potassium sulfide…

Q: a. In the laboratory you are given the task of separating Ca2+ and Pb2+ ions in aqueous solution.…

A: To answer questions regarding separation of ions.

Q: h) What is the mass, in grams, of barium sulfide precipitate that is formed from the reaction of…

A: Given, Ba(NO3)2 + FeS → BaS + Fe(NO3)2 Note: 1000 mg = 1 g Mass of iron (II) sulfide {FeS} = 18.2 mg…

Q: In the recipe for mayonnaise, the phospholipids in the egg yolk act as emulsifiers. If you assume…

A: Given that : Weight of one egg yolk = 10 g 33% of egg yolk is fat, so, 33% of 10 g = 3.3 grams

Q: When 25 g of lead (II) nitrate, Pb(NO3)2, is mixed with 15 g of sodium iodide in water, a reaction…

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Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

A: (1) Capsaicin has Following molecular formula -  C18H27NO3  And it's Molecular mass is -  =>…

Q: The aluminum in a 0.685 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: Mass percentage of a component can be calculated by using the formula :  mass %ge of the component…

Q: b) i) Calculate the number of moles of sodium ions In an aqueous solution of 2.63 g of Na,Co, ii)…

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

Q: An impure sample of table salt (NaCl) that was dissolved in water and treated with silver nitrate to…

A: Mass of the impure sample = 1.741 g  Mass of AgCl formed = 4.084 g

Q: 7) Define stoichiometry. A) the concept that 6.02 x 1023 atoms are in 1 mole of an element B) the…

A: A) the concept that 6.02 X 1023 atoms are in 1 mole of an element is known as Avogadro's concept…

Q: When (NH4 )2SO4 , and BaCl2 are mixed, a precipitate will form. Which ions should act as reactants…

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Q: If 9.250 g Fe is mixed with 13.39 g O2, calculate the theoretical yield (g) of FeO produced by the…

A: Given :-  mass of Fe = 9.250 g  mass of O2 = 13.39 g  To be calculated :-  theoretical yield or mass…

Q: Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching…

A:

Q: The molarity of a solution made by dissolving 2.45g of potassium chlorate(KCIO3) in water to make…

A: Molarity (M):  Number of moles of solute (n) present per litre of solution is known as molarity.  M…

Q: when aqueous solutions of K2CO3 and SrCl2 are mixed, what is the correct formula for the precipitate…

A: Since the balanced reaction taking place is  K2CO3 (aq)+ SrCl2 (aq)  ----> 2KCl (aq) + SrCO3 (s)…

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".