galena a mineral of lead is a compound of the metal with sulfer. Analysis shows that a 17.74 g sample of galena contains 2.39 g of sulfer a.) Calculate Mass of lead b.)Mass Fractions of lead and sulfer in galena. Calculate to three significant figures mass fraction of Pb: Mass fraction of S: c.) Mass percents of lead and sulfer in galena. Calculate to three significant figures  Mass % of Pb: Mass % of S:

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: Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a…

A: a)  Given: Mass of Fluorite = 92.03 g Mass of Calcium = 47.12 g To calculate: The mass of Fluorine…

Q: 19- by heating 2.86 g of hydrated sample of washing soda Na,CO3.XH20, till Complete drying the…

A: This reaction is all about the  conversion of hydrous salt into anhydrous salt by applying heat to…

Q: Seawater consists of many important elements in the form of salts dissolved in the water. At 25°C…

A: #Q.1: Mass of seawater, m = 1000.0 g * 1 Kg1000 g = 1.000 Kg density of seawater, d = 1.024 kg/L

Q: The hydrated salt, MY2·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: (i) Calculation of mass of hydrated salt: Calculation of mass of anhydrous salt: Mass of water in…

Q: Explain in detail how you could separate a mixture containing Al203, KCI, and NH4I using various…

A: To segregate these components from the mixture, various physical methods can be used. 1. Solubility…

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover = 28.86 g Mass of crucible, cover, and hydrated salt = 32.86…

Q: Write a balanced chemical equation for the reaction that occurs when (a) Mg(s) reacts with Cl21g2;…

A: Balanced Chemical Reactions for the given conditions are discussed below -

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

A:

Q: 0.634 g of commercial bleach solution required 13.24 ml. of 0.0732 M sodium thiosulfate(Na2S203)…

A: Mass percent of an element  is defined as the mass of element present in total mass of the compound.…

Q: Which is correct and which is incorrect from the following sentences? Proposition True False (a) The…

A: The solution is shown below

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

A: The compound formed by every metal ion with another anion possesses a different solubility depending…

Q: Potassium iodate solution was prepared by dissolving 1.022 g of KIO3 (214.00 g/mol) in a 500-mL…

A: Molarity of a solution = Number of moles of solute/ volume of solution in L Number of moles of a…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: First of all we have to calculate the moles of Fe2O3. From that only we get the moles of Fe and…

Q: Write the Qc for this  Solid molybdenum(VI) oxide reacts with gaseous xenon difluoride to form…

A:

Q: 6. Precipitates used in the gravimetric determination of uranium include Na;U;O; (634.0 g/mol).…

A: In a gravimetric analysis precipitation method is used for the quantification of required substance.…

Q: AsO43+3 Ag+= Ag3AsO4 (0) The arsenate is converted into a solid (Ag3AsO4 (s)). If the mass of solid…

A: Given,

Q: The hydrated salt, MY3.XH2O, was heated strongly in a crucible to remove all the water molecules of…

A: From the given information , we have,         Mass of empty cruicible and cover, m1 = 28.86 g…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: Given: The mass of iron (Fe) ore A is 1.500 g The mass of pure Fe2O3 in ore A is 0.5215 g The mass…

Q: 5.  A 0.8102-g sample of impure Al2(CO3)3 decomposed with HCl; the liberated CO2 was collected on…

A: In the Question- 5 we want to determine the percentage of Al in the sample.  You can see details…

Q: Major Entities present in Cu(s) a) Cu(s), H2O(l) b) Cu2+(aq), H2O(l)

A: To answer: Major Entities present in Cu(s) a) Cu (s), H2O (l) b) Cu2+ (aq), H2O (l)

Q: The phosphorus in a 0.3724 g sample was precipitated as the slightly soluble (NH,);PO,.12M0O3. this…

A: Given: Mass of PbMoO4 produced = 2.7346 g And mass of phosphorous sample used (with P4O10 in it) =…

Q: An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb to Cd…

A: Given,An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb…

Q: Please answer A-E

A: Mass of 0.025Mpotassium nitrate and 0.025Mcopper sulphate are calculated as,vv

Q: Part A Calculate the mass percent composition of iron for Fe2 O3 (hematite). Express the mass…

A: Mass percent of component = (mass of component / total mass of compound ) × 100

Q: Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a…

A:

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

Q: How many grams of aspirin should be used to prepare 1.255 kg of the powder? Aspirin 6 parts…

A: Given;

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: Complete and balance the reaction. Include the physical states of the products. CUCO, (s) + H,…

A:

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: Answer:- This question is answered by writing the chemical equation for the given both chemical and…

Q: A sample of magnetite  (impure Fe3O4) weighing 0.4500 g is fused with oxidizing flux and the ferric…

A: Magnetite is an ore of Fe with the formula Fe3O4

Q: In the chemical equation: Fe203(s) + 2 AI(s) --> 2 Fe(l) + Al20(s) the (I) means O a. solid O b.…

A:

Q: The reaction of elemental potassium and S8 (elemental sulfur exists in its crystalline state as an…

A: Introduction: We have to write the equation between potassium and S8.

Q: DE cmo 67 6.2 mol dnis oC,l 67 0:2 moldn SAuti on Na, lo3 was diluted us with to sbtain digbilled…

A:

Q: The physical basis for life is the carbon atom. This atom   a. is more abundant than silicon.   b.…

A: Carbon is a chemical element with the symbol C and atomic number 6. It's non metallic and…

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg"). The solution is…

A: Given that -  Mass of sample of alloy, Al-Mg = 5.276 g  Mass of alumina, Al2O3 = 1.444 g  Molar mass…

Q: Calculate the mass percent composition of iron for each iron ore: Fe2O3Fe2O3 (hematite), Fe3O4Fe3O4…

A: a) mass % composition of iron in Fe2O3 (hematite). molecular weight of Fe2O3  = 159.69 g/mol…

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

A: Inorganic cations can be separated using different reagents. For the separation of Ag+ and Fe2+, the…

Q: How many mg of iron are present in a 236.5 g ore sample containing 0.15% iron by mass?

A: We need to first calculate the mass of iron present by mass in the given quantity of ore, and then…

Q: Cerium(IV) sulfate in acidic solution is used to titrate a solution of arsenous acid, with which it…

A: Equation for the reaction is

Q: A 0.8965g ore sample is dissolved in nitric acid and then filtered. The aluminum is present in…

A: Since you have asked a question with multiple sub-parts, we will solve first three subparts for you.…

Q: ure Fe2O3.  When solid Fe2O3 is heated with an excess of carbon, iron metal, and carbon monoxide are…

A: When Fe2O3 reacts with carbon, pure iron is obtained. The following reaction takes…

Q: A mixture containing only FeCl3 and AlCl3 weighs 5.95g. The chlorides are converted to hydrous…

A:

Q: A mixture containing only FeCl3 and AlCl3 weighs 10.95 g. The chlorides are converted to the hydrous…

A: Weight of chloride mixture = 10.95g Weight of oxide mixture = 5.62g Molecular weight of FeCl3 is…

Q: There are various methods for finding the composition of analloy (a metal-like mixture). Show that…

A:

Q: The hydrated salt, MY2 XH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Calculation of mass of hydrated salt: Calculation of mass of anhydrous salt: Mass of water in the…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: % Fe3O4 =Amount of Fe3O4 in orein gAmount of sample in g×100%

Q: 24. A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure…

A: First of all we have to find mole of Fe from the mole of Fe2O3. From that we will get mass of Fe.…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.