One of the sources of iron is magnetite, Fe3O4 (FeO and Fe2O3 mixed), which reacts with coke (carbon) to produce iron in the liquid state and carbon monoxide. If we assume that coke is pure carbon, how much is supplied to produce 10,000 metric tons of iron?

Q: 3. A mixture containing only AgCl (FW 143.32) and AgBr (FW 187.77) weighs 2.000g. It is…

A: Here we are required to find the percentage of AgCl and AgBr in 2 gm of sample

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: a) Assuming that the coal was 81.5 % carbon by mass and that combustion was complete, calculate the…

A: Given: Part a) Amount of Carbon =81.5 % Part b) Amount of Sulfur = 4.40% Total amount of coal in an…

Q: mass

A:

Q: 2 po All the following are characteristic properties of phosphorus. Which one is a chemical…

A: In the above question some properties of phosphorus is given ,some of them are physical or chemical…

Q: If the density of ethanol is 0.789 g/mL, how many cm3 can be produced by the fermentation of 45.4 kg…

A: Ethyl alcohol is formed by enzyme action on sugars and starches by fermentation. C6H12O6 → 2 CO2 + 2…

Q: Most abundant metal on the surface of the earth:(a) Iron(b) Aluminium(c) Calcium(d) Sodium

A: There are many metal on the surface of the earth but the one that is most abundant on the surface of…

Q: Length of heating time for empty crucible and lid                                        _____10.0…

A: Given  Length of heating time for empty crucible and lid  10 min Mass of empty crucible and lid…

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl2, H2, and…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: What is a chemical property of sodium?

A: Sodium is an element with atomic number 11 and represented by the symbol Na.

Q: What is the balanced chemical reaction for the combustion of TNT in air. Please use lowest possible…

A: C7H5N3O6(s) + O2(g) ----> CO2(g) + H2O(g) + N2(g)  The balance chemical equation for this…

Q: Which of the following features is internal-intrinsic? A. Iron cube volume B. NaCl(s) Crystal…

A: Intrinsic features are those features which do not depend on the volume or mass or number of…

Q: What is the maximum mass in grams of magnesium oxide that can be produced by the reaction of 6.8g…

A:

Q: Given the following data, calculate the mass percentage of copper in the unknown copper oxide sample…

A: According to the question, Mass of empty test tube:…

Q: 7.5 g aluminum was heated with sodium chlorate (NaClO3) in an evacuated glass vessel. The heating…

A: A numerical problem based on the oxidation of Al into Al2O3, which is to be accomplished.

Q: a) Calculate the molar ratio of carbon / hydrogen in the fuel and use the result to prove that the…

A: (A) -- When methane (natural gas) is burnt  CH4+2O2  →  CO2 +  2H2O16 gm              44 gm    36 gm…

Q: Imagine that you are the CEO of a mining company. Your employees were able to excavate 2 ores,…

A: Metallic iron may be cheaply recovered from iron ores, which are rocks and minerals. Iron oxides…

Q: A mixture is made by combining 1.02 lb of salt and 3.76 lb of water. What is the percentage of salt…

A: Percentage of salt (%) by mass is given by percentage by mass = mass of salt x 100/mass of water…

Q: Sulfuric acid can be manufactured using the reaction: 2 S(s) + 3 O2(g) + 2 H2O(l) → 2 H2SO4(aq) If…

A: Given : 2 S(s) + 3 O2(g) + 2 H2O(l) → 2 H2SO4(aq) Sulfur consumed = 65 metric tons To find : metric…

Q: The density of concentrated ammonia, which is 28.0% w/w NH3, is 0.899 g/mL. What volume of this…

A:

Q: 1.58g of magnesium hydrogencarbonate was added to a 1.68 mol/L solution of acetic acid, CH3COOH in…

A:

Q: A passenger jet contains 4050 kg of copper wiring. A rock sample contains 1.25% CuFeS2 by mass.…

A: % by mass is given by % by mass = mass of solute X 100 / mass of rock Since the rock has 1.25 %…

Q: The analysis of a sample of the mixture obtained during the industrial preparation of nitric acid…

A: This problem can be solved from the basic physical chemistry problem.

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: A question about elements that is to be accomplished.

Q: The molecule of the week is Tetraethyl orthosilicate (TEOS) of which 120,000 metric tons (1 metric…

A: The compound Tetraethyl orthosilicate (TEOS) has a molecular formula of C8H20O4Si

Q: The reaction of barium with sulfur is similar to that of magnesium with sulfur. Write the balanced…

A: A balanced chemical equation is the one in which the elements of the reactants becomes equal to the…

Q: A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose…

A: Consider that coal contain two elements that is carbon and sulfur. Amount of sulfur present in the…

Q: An alcoholic fermentation was conducted in the laboratory using 280 g glucose as substrate with a…

A: Formula used are given below: Density = Mass of substance / Volume of substance and Percent Volume =…

Q: Combustion of hydrocarbons such as dodecane (C1,H26) produces carbon dioxide, a "greenhouse gas."…

A: 1) The balanced chemical equation for the combustion of dodecane (C12H26) is, C12H26(l) + 18.5 O2(g)…

Q: Life support systems of spaceships and submarines are designed assuming that average consumption of…

A: The life support system  make traveling possible for humans in space. It provides  oxygen, waste…

Q: As part of the aspirin synthesis lab the orgo students also had to perform the following calculation…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

Q: Write the balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and…

A: A chemical reaction is symbolic representation of the conversion of substances to new substances. In…

Q: Combustion of hydrocarbons such as heptane (C,H16) produces carbon dioxide, a "greenhouse gas."…

A: The relation between the physical quantities like pressure, volume, no of moles and temperature is…

Q: You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does…

A: Given formula of chemical is K3Cl  We need find whether a compound with this  formula exist or not

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

A:

Q: A 0.5664 g ore sample is dissolved in nitric acid and then filtered. The aluminum is present in…

A: The ore sample contains aluminum and is extracted using dissolution and filtration. The solution is…

Q: (CO2) Limestone (CaCO,) Firebox Lime (CaO) Thermal decomposition of limestone (calcium carbonate).…

A:

Q: The concentration of gold in seawater is 0.0027 ug/L. What mass of gold (in kg) is present in the…

A: Given: The concentration of gold in seawater = 0.0027 ug/L. Volume =  3.23 x 1011  km3  To…

Q: In the production of printed circuit boards for the electronics industry, a 0.765 mm layer of copper…

A: Area of one board = 7.55 cm x 18 cm = 135.9 cm2.Area of 8700 board = 8700 x 135.9 cm2 = 1182330…

Q: Nitrous oxide (N₂O), also known as laughing gas, has uses in surgery and dentistry as an anesthetic.…

A: Given : Mass of N2O = 4.23 Kg = 4230 g                                               (since 1 Kg =…

Q: A substance which cannot be broken down by distillation, electrolysis or heating is most likely c. a…

A: elemental substance is the class of pure substance that can not be separated in to two or more…

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: Explanation:  Option D is correct  [C,H,O,N]      Soil organic matter is composed chiefly of carbon,…

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of water.

Q: Aspirin can be prepared from salicylic acid (C7H;O3), which has a molar mass of 138.12 g/mol, and…

A:

Q: "Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide…

A: (a) As specified by the question - one copper penny has a mass of 3g. therefore, 100 copper penny…

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".