Portland cement contains some Fe2O3. Calculate the mass percent composition of iron in this compound. Small amounts of Cu2O are added to glass to give it a green color. Calculate the mass percent composition of copper in this compound. Calculate the mass percent composition of oxygen in Fe2O3.

Q: Calculate the percentage composition for CC1 . Mass percentage of carbon = %3D Mass percentage of…

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Q: A sample of an iron alloy contains 89.4 g Fe, 2.50 g C, and 1.47 g Cr. Calculate the percent by mass…

A: Given :-  Mass of Fe = 89.4 g  Mass of C = 2.50 g  Mass of Cr = 1.47 g  To calculate :-  Percent by…

Q: A sample of an iron alloy contains 90.2 g Fe, 2.15 g C, and 1.01 g Cr. Calculate the percent by mass…

A: Total mass of the alloy = mass of Fe + mass of C + mass of Cr = 90.2 + 2.15 + 1.01 = 93.36 g

Q: Aluminum nitrate + potassium bromide

A: We can expect aluminium bromide and potassium nitrate as the displacement products.

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

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Q: Iron is found in Earth’s crust as several different iron com-pounds. Calculate the mass (in kg) of…

A: 1.0  103 kg of iron. Fe2O3 (hematite) Fe3O4 (magnetite) FeCO3 (siderite)

Q: copper(II) sulfate sodium chloride potassium sulfite calcium nitrate

A: Ions are charged species which can be both positively or negatively charged. These are of two types.…

Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

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Q: An ore is O a mixture of two or more metallic elements. a natural source from which a metal can be…

A: The metals can be extracted from the compounds which are occuring in nature in the earth crest. The…

Q: Calculate the mass percent of manganese (Mn) in potassium permanganate (KMnO4).

A: First of all, before leading to the solution we will learn about the meaning of mass percent. The…

Q: 1. Ethane gas, C:H6, burns in air (i.e reacts with oxygen in air ) to form carbon dioxide and water:…

A: Ethane combustion to form carbon dioxide and water, from this balanced stoichiometric equation used…

Q: Calculate the mass percent of 0.485 g of H, which reacts with oxygen to form 2.32 g H2

A: Formula to be used to calculate mass percent of hydrogen  is given  below Mass  % of hydrogen = mass…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in Fez Os (8)+2A1(s)…

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Q: Describe the formation of solid potassium sulfide (K2S) from large numbers of potassium and sulfur…

A: ANSWERE IS DISCUSSED BELOW :

Q: Give the mass percent of carbon in C14H19NO2 O 38.80% O 2.78% O 5.17% O 71.40%

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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: gold (I) bicarbonate manganese (IV) hypochlorite lithium sulfide aluminum iodate bismuth (III)…

A: When two or more atoms combine with each other, they will form molecule and those molecules has…

Q: Calculate the mass percent of each element in aluminum chlorohydrate. It's simplest form is Al2 (OH)…

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Q: Acetic acid (HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent composition of…

A: The way of representation of concentration of an element in a compound or a component of a mixture…

Q: Determine the % composition for each element in Al 2 (SO 4 ) 3 ?

A: To find the percent composition of Al₂(SO₄)₃, you divide the total mass of each atom by the…

Q: Complete reaction

A: Given is the substituted benzene which contains both the electron-donating group(-OCH3) and…

Q: • Sucrose: C12 H22O11 • Copper (I) Chloride: CuCl • lodine: I2 • Potassium lodide: KI Our goal is to…

A: The three main factors that affect the conductivity of a solution are:  The concentration of…

Q: Magnesium sulfate (M9SO.) O a. 1 O b. 2 О с. 3 O d. 4

A: Magnesium sulfate is an ionic compound. An ionic compound is made of cation and an anion. Here,…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: The ionic compound is formed by the columbic interactions between the cation and an ion anion. We…

Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…

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Q: Part A Iron is mined from the earth as iron ore. Common ores include Fe2 O3 (hematite), Fe3 O4…

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Q: What is the percentage of nitrogen, by mass, in calciumnitrate?(a) 8.54% (b) 17.1% (c) 13.7% (d)…

A: Calcium nitrate is a compound of formula CaNO32. One mole of calcium nitrate contains two moles of…

Q: Calculating an Empirical Formula from Mass Data Although the mineral ilmenite contains more iron…

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Q: A mixture contains 78% apatite (Ca3(PO4)2 . CaF2). The rest of the mixture does not contain…

A: Given: Mass percent of Ca3(PO4)2.CaF2 = 78% And there is no P in the mixture apart from that in the…

Q: A sample of an iron alloy contains 87.7 g Fe, 2.60 g C, and 1.52 g Cr . Calculate the percent by…

A: Calculate the percent by mass of each component present in the alloy sample.

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 33.807…

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Q: Coke is an impure form of carbon that is often used in the industrial production of metals from…

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Q: Calculate the percent composition of elements in the following compounds as indicated.…

A: “Hey, since there are multiple sub part questions posted, we will answer first three questions. If…

Q: 17. A 5.0 g sample of calcium nitrate (Ca(NO3)2, M=164) contaminated with silica (SiO2, M=60.1) is…

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Q: Calculate the percent composition by mass of the following compounds that are important starting…

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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: 0.896 g sample of impure magnesite, MgCO3 , was decomposed with HCl; the liberated CO2 was collected…

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Q: What is the mass percentage of Na in NaNO₃?

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Q: An unknown hydrocarbon is subjected to elemental analysis. It is determined to be 85.6% carbon and…

A: Mass % of Carbon = 85.6% Mass % of Hydrogen = 14.4% Empirical formula =?

Q: What mass in grams of KIO3 is needed to convert the copper in 0.2444 g of CuSO4 .5H2O to Cu(IO3)2?…

A: Answer:- We determined mass of KIO3 By using Stoichiometry of chemical reaction .

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula /…

Q: A 67.2 gg sample of a gold and palladium alloy contains 2.68×1023 atoms. What is the mass percentage…

A: Mass percent of an element is the ratio of its mass  in the compound to the total mass of the…

Q: Calculate the mass percent composition of nitrogen in NH4NO3     Calculate the mass percent…

A: Mass percent = mass of nitrogen ×100/mass of compound

Q: Write the chemical equation for the word equation below. Each blank should be a different substance…

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Q: Describe the PHYSICAL PROPERTIES of the following substances Specifically, what type of matter is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A rock is 17.5% by mass fayalite (Fe2SiO4), 17.6% by mass forsterite (Mg2SiO4), and the remainder…

A: Answer: First of all we will calculate the mass of each element in fayalite, frosterite and silicon…

Q: Consider 11.5 g Na2SO4. a. Determine the number of moles of Na2SO4. b. Determine the number of Na +…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: An engineer has filed for a patent for a brand new allot to be used in golf club heads. The…

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Q: A 67.2 g sample of a gold and palladium alloy contains 3.07×1023 atoms . What is the mass…

A: Given : Mass of sample = 67.2 g And total number of atoms = 3.07 X 1023 atoms Assuming the moles of…

Q: Ethyl mercaptan is an odorous substance added to natural gas to make leaks easily detectable. A…

A: Given : Total mass of ethyl mercaptan sample = 3.17 g And mass of sulfur in ethyl mercaptan sample =…

Q: Silver (I) Chloride dinitrogen dioxide Vanadium (v) oxide > >

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.