How Many Moles Of Iron Oxide Would Be Produced

890 moles of sulfur dioxide were produced, how many moles of oxygen gas were required to react with. Multiply the number of moles by the atomic weight of carbon and you're done. Aluminum metal reacts with iron(III) oxide to produce aluminum oxide and iron metal. How many grams of aluminum are required to produce 410 grams of aluminum oxide through reaction with oxygen gas? 5. The unbalanced synthesis reaction between aluminum metal and oxygen is: Al (s) + O 2 (g) ===> Al 2 O 3 (s). 35 mol of Fe 1. Note that rounding errors may occur, so always check the results. g of iron in an excess of H2O?. 00 x 102g of each of the following compounds A. We assume you are converting between grams Fe2O3 and mole. 4 g Fe 1 mol Fe b. The SI base unit for amount of substance is the mole. It occurs in nature as the mineral magnetite. 6/22/2017 B. 78 moles of barium phosphate, assuming that you have an excess of lead (IV) phosphate?. 60 mol of Fe is produced in the following reaction 2Al(s) + 2Fe(s) ---> 3Fe(s) + Al2O3(s) 0. Since the molecular mass of carbon-12 is 12, there are 12 grams in 1 mole of it, and therefore 20/12 = 5/3 moles in 20 grams. If you want to produce 6 moles of iron (III) oxide, how many moles of iron do you need to start with? (Assume you have all the oxygen that you need. 0 grams of magnesium, Mg? 0. How many moles of molten iron can be produced from 1. 10 moles Iron(II) Oxide to grams = 718. What is the mass of 1 molecule of carbon tetrachloride? 12. Chapter 3 Mass Relationships in Chemical Reactions Student: _____ _____ 1. Use the moles of iron, and the balanced equation, to determine the number of moles of O. When lead (II) sulfide is burned in air, lead (II) oxide and sulfur dioxide are produced. 022 x 10 atoms Na 2) Determine the mass in grams of each of the following: a. Iron (III) oxide results naturally when iron and oxygen come into contact at high temperatures. When 2 mole of H 2 O (l) is produced 890. The purpose of this lab was to determine the empirical formula of iron oxide utilizing two methods: flaming steel wool with a Bunsen burner and soaking steel wool in an acetic acid solution. (a) How many moles of Fe2O3 are required to completely react with 55 g Al? mol (b) How many moles of Fe are produced by the reaction of 3. 298kg of Fe2O3. How many moles of iron are actually formed? 5. 13) For the reaction represented by the equation 3Fe + 4H2O → Fe3O4 + 4H2, how many moles of iron (III) oxide are produced from 500. How many moles of oxygen react with 2. How many moles of iron and oxygen are required to produce 10 moles of magnetic iron oxide?. 00 mol sample of iron(II) oxide is heated with 1. How to Calculate the Molar Mass / Molecular Weight of Fe2O3 --- Iron (III) Oxide Wayne Breslyn Converting Between Moles, Atoms, and Molecules How to Write the Formula for Iron (III) Oxide. How many moles of water will be produced if 2. 3 Writing and Balancing Chemical Equations 3. How many moles of oxygen react with 12. This means that 2 moles of Mg give 2 moles of MgO, or one mole of Mg gives one mole of MgO. 8*g*mol^-1 "iron metal" = ??g. The reduction of iron ore by hydrogen was widely studied in the 60s to 80s. For the reaction 2Zn + O2 2ZnO, how many grams of zinc oxide can be produced from 196 g of zinc? a. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 35 grams of aluminum react, how many grams of iron(III) oxide will react? Give your answer with only 1 decimal place. 52 mol Mol Fe2O3 produced = 1. This is found by determining the moles of Mg and O in the product; divide each value by the smaller number; and, multiply the resulting values by small whole numbers (up to five) until you get. In the given problem, we need to find out how many grams of NaCl would be produced in the reaction. 25 g sample of oxygen with excess iron how many formula units of iron(III) oxide are produced?. 1954 mol oxygen)18. How many moles of ferric oxide will be produced if 0. It is a common rock-forming mineral found in sedimentary, metamorphic, and igneous rocks at locations throughout the world. Read More Asked in Atoms and Atomic. How many moles of TiCl4 can be produced when 9. How many moles of oxygen react with 2. Also, if we calculate the amount of oxygen consumed, we get different answers when we use reactant data and product data. 7 mol FeO reacts with excess of CO asked by @zainabub1 • 8 months ago • Chemistry. 3 grams of carbon monoxide to produce 8. How many atoms are in 0. First check that the chemical equation for the combustion of iron is balanced. Researchers who studied "limonite" discovered that it is amorphous and has a variable composition. 694g) of iron. iron 3 oxide reacts with carbon monoxide according to the following equation: fe2O3+3Co-->2Fe+3Co2 a) how many moles of ions are produced when one mole of iron 3 oxide reacts b) calculate the volume of carbondioxide produced when. How many moles of hydrogen are need to convert 250 grams of chromium(III) oxide? Cr 2O 3 + 3H 2 2Cr + 3H 2O 5. Since the molecular mass of carbon-12 is 12, there are 12 grams in 1 mole of it, and therefore 20/12 = 5/3 moles in 20 grams. 45 moles of carbon dioxide. What mass in grams of black iron oxide is produced? 4. It is also categorized as hydrocarbon. Iron(III) oxide and carbon monoxide to produce iron(II) oxide and carbon dioxide. Iron and steel industry is the main consumer of quicklime. We can see there are two iron atoms for every hematite molecule. Which choice makes the correct comparison of the relative numbers of bromine and neon atoms in 1,000 g of each element? A. Worksheet 9 - Mass % and Empirical Formulas iron (II) oxide: How many moles of CO2 are produced? How many moles of carbon were present in the butyric acid. When fool's gold, iron(IV) sulfide reacts with oxygen it forms iron III oxide and sulfur dioxide. 52 mol / 3 molBeO * 1. In the following reaction, how many moles of iron are produced if 8 moles of Iron (III) oxide are decomposed by electrolysis? 2 Fe2O3 → 4 Fe + 3 O2 How many moles of aluminum are required to react with 2. Researchers who studied "limonite" discovered that it is amorphous and has a variable composition. To determine the number of moles of Fe that can be made from 25 moles of Fe2O3, you need to write the balanced chemical equation for producing O2 from Fe2O3. 4 mol of iron in the rusting reaction?. 180 moles of chlorine molecule react according to the equation: 2 Cr + 3 Cl2 ---> 2 CrCl3 a. 252 g of mercury(II) oxide. therefore when 26. 5 g of Iron (III) oxide is produced from 8. 022$x$1023$mold1)$ represents$the$number$of$molecules$in$a$mole. 2 NaBH4(s) + I2(s) B2H6(g) + 2 NaI(s) + H2(g) Diborane, B2H6, is used in organic synthesis and can be made by the reaction given above. 2, how many moles of iron oxide are produced from 500 g of iron? a. Mole-Gram Calculations One of the things you will do throughout this course is to work back and forth between mass in grams and the amount of material in moles. How many grams Fe2O3 in 1 mol? The answer is 159. 79 moles of. How many moles of TiCl4 can be produced when 9. 845 + 3 x 16 = 159. 60 tonnes (l tonne = 1000 kg) of iron oxide. So, if we have 2 moles of Iron Oxide we will have #2xx2 = 4# moles of Iron. that 2 magnesiums will give 2 magnesium oxides. Wrought iron has been used for many centuries, and is the "iron" that is referred to throughout Western history. NASA Technical Reports Server (. Iron oxides and oxyhydroxides are widespread in nature and play an important role in many geological and biological processes. This means that 2 moles of Mg give 2 moles of MgO, or one mole of Mg gives one mole of MgO. 00 L of water vapor at 50. 1 The Mole 3. 3 g of iron react with excess chlorine gas?. Siderosis doesn't usually affect the body beyond producing small, opaque spots on the lungs that may show up on X-rays. First, work out how many moles of iron oxide 20g is equivalent to. 19 mol Fe2O3 and 99. Calculate the maximum theoretical mass of iron that can be made from 100g of iron oxide. It is a common rock-forming mineral found in sedimentary, metamorphic, and igneous rocks at locations throughout the world. (2 marks) c. Example: Calculate the mass of (a) 2 moles and (b) 0. The number of moles of dioxygen present in 100 g of iron oxide are 30. How many grams of sulfur dioxide are produced by combining 350. 00 mol sample of iron(II) oxide is heated with 1. 20 moles of carbon monoxide (CO) reacting with excess iron (III) oxide (Fe 2 O 3)? Given unit: 6. How many moles of calcium oxide will be produced when 1. The sum of all the resulting “oxygen numbers” (2. Iron (III) oxide is formed when iron combines with oxygen in the air. How many moles of iron and oxygen are required to produce 10 moles of magnetic iron oxide? b. How many moles of iron are formed if all iron oxide is used? If all the carbon monoxide is used up? b. First check that the chemical equation for the combustion of iron is balanced. 845 + 3 x 16 = 159. But this value is in terms of moles. Relative moles of iron in iron oxide: Hence, mass of ammonia produced by 2000 g of N 2 = 2428. Solid calcium combines with oxygen gas to form solid calcium oxide. Calculate the theorectical mass of iron produced from the reaction of 5. How many moles of O Microsoft Word - stoichiometry_1_worksheet_and_key. ILK g 2, 06 5. 4 grams of iron (III) oxide reacts with 12. H2, O2, N2, F2, Cl2, Br2, I2 ADVANCED CHEMICAL EQUATIONS 26. 8*g*mol^-1 "iron metal" = ??g. In the synthesis, at higher NH 4 OH concentrations, smaller sized nanoparticles were obtained. Full Answer. molecules, there are 4 moles of oxygen atoms, which has a molar mass of 16. The United States is also a major importer of iron and steel, as well as iron and steel products. The empirical formula for a compound is the smallest whole number ratio of x to y. How many moles of iron (Fe) will be produced from 6. That is moles of hematite, but the question is about iron. Since the molecular mass of carbon-12 is 12, there are 12 grams in 1 mole of it, and therefore 20/12 = 5/3 moles in 20 grams. Which choice makes the correct comparison of the relative numbers of bromine and neon atoms in 1,000 g of each element? A. 2 Determining the Formula of an Unknown Compound 3. We can see there are two iron atoms for every hematite molecule. Iron oxides are chemical compounds composed of iron and oxygen. Chemistry of the blast furnace. Solid iron (Ill) hydroxide decomposes to produce iron (Ill) oxide and water vapor. 5 mol of oxygen? How would I solve?I am learning stoichiometry overnight since I have been absent and want to be sure I am doing this right. 23 g of pure iron, wh? If 2. In all three possible reactions, the number of moles. 75 mol Cu b. Get an answer for 'Given this equation: 4Fe+3O2-->2Fe2O3 How many moles of iron (III) oxide can be produced from : 4 mol of Iron and 2. Read More Asked in Atoms and Atomic. The molar mass of Fe, 55. Calculate the % yield. In the video below, Mr. The strong green color can often be modified by very small amounts of other oxides, like cobalt oxide, copper oxide, iron oxide, manganese dioxide, rutile, tin oxide, etc. 3 Writing and Balancing Chemical Equations 3. the formula to find moles: Moles = Mass / Molar mass. A sample contains 27. 75 x 3 or 5. When lead (II) sulfide is burned in air, lead (II) oxide and sulfur dioxide are produced. 4 grams of hydrogen iodine gas?. Calculate the mass of iron (III) oxide produced by the reaction of 500g of iron with oxygen from the air. 0 grams of iron? d. For example, 1 mole of sulphuric acid is made up of 2 moles of the element hydrogen, 1 mole of sulphur and 4 moles of oxygen. 02 X 10 25 molecules of aluminum oxide are produced, then how many grams of. Calculate the number of moles of Al2O3 that are produced when 0. Second, you need to know how many moles there are in 20 grams of carbon-12. Iron oxide is a very important chemical compound. Iron will react with oxygen to produce ferric oxide. For example, in the reaction Fe2O3 + 3CO → 2Fe + 3CO2 1 mole of iron(III) oxide reacts with 3 moles of carbon monoxide to form 2 moles of iron and 3 moles of carbon dioxide. The molar mass is 2 x 55. a How many moles of Fe 2 O 3 are required to completely react with 44 g Al?; b How many moles of Fe are produced by the reaction of 3. 23 g of pure iron, wh? If 2. 320 mole of O. Red and yellow ochre pigments abound at the surface in Minas Gerais, Brazil. Convert mass to moles (molecular weight) 3. Chemistry of the blast furnace. Solid iron (Ill) hydroxide decomposes to produce iron (Ill) oxide and water vapor. Laughing gas (nitrous oxide, N2O) is sometimes used as an anesthetic in dentistry. During this oxidation reaction, magnesium oxide is produced. 825 g ____ 10. g of iron in an excess of H2O? A. The United States is also a major importer of iron and steel, as well as iron and steel products. Calculate the ratio between the number of moles of silver and the number of moles of oxygen in the product. Calculate the moles of iron and of chlorine produced using the number of moles of electrons calculated and the stoichiometries from the balanced half-reactions. 5 grams of Ag were produced, how many grams of Cu reacted? 26. What is the theoretical yield of iron(II) oxide in grams? What is the percent yield for this reaction ? For the following reaction, 4. In some mole-to-mass conversions, the number of moles of the known substance is given. I-IQW many grams of iron are formed when 150?. This reaction is an oxidation-reduction reaction, a single replacement reaction, producing great quantities of heat (flame and sparks) and a stream of molten iron and aluminum. ) How many grams of iron Ill) oxide are produced? 'Oð3mel Ha C) , /D/. WRITE IN THE CORRECT FORMULA THEN BALANCE THE CHEMICAL EQUATIONS Note: Many elements exist as diatomic molecules. The starting material was heat-treated at 500 °C in a H2 gas flow leading to segregation of α-Fe crystalline particles and then dissolved in 1 M. Unit 10 Stoichiometry. How many moles of calcium oxide will be produced when 1. sulphide) is a chemical compound with the formula Fe S. Step 6: Find out how many grams of iron will be produced for 268 grams of iron (III) oxide 268 grams = (224/320)x268 = 187. a mole of carbon would weigh 12g). 0 moles of C10H22 react with an. The chemical formula for iron (III) oxide is Fe2O3. How many moles of barium nitrate will be needed to produce 0. 0 g of iron and steam. How many moles of oxygen react with 2. How many moles of aluminum oxide formed if 3. 65 g Fe)(1 mol Fe/55. Employment as of 2014 was 149,000 people employed in iron and steel mills, and 69,000 in foundries. Determine the mass of carbon dioxide produced when 0. When iron reacts with oxygen at high temperatures, a magnetic iron oxide is produced: 3Fe + 2O2 Fe3O4 a. 4 mol of iron in. Stoichiometry Problems 1. 239 mol of H2 is produced from 10. How many moles of oxygen are required to burnhydrogen gas and heat to produce free iron and 4. Write a balanced equation for the reaction. How many grams of oxygen are required to produce 0. How many moles of oxygen react with 11 moles of C 3H8? ? mol O 2 = 11 mol C 3 H 8 × 5 mol O 2 1 mol C 3 H 8 = 55 mol O 2 b. Enter conversion factor from balanced equation 4. It is a common rock-forming mineral found in sedimentary, metamorphic, and igneous rocks at locations throughout the world. The number of moles and the mass of oxygen formed by the decomposition of 1. This substance can also be made in the laboratory by the reaction between red-hot iron and steam according to the following balanced equation. 5 mol of oxygen? How would I solve?I am learning stoichiometry overnight since I have been absent and want to be sure I am doing this right. How many molecules of carbon monoxide (CO) are needed to react with excess iron (III) oxide (Fe 2 O 3) to produce 11. Assuming that Fe isn't restricting interior the reaction, then the optimal volume of FeO2 which would be produced is two. asked by caroline on September 25, 2010; Chemistry e. 6 grams The mass of iron produced from 268 grams of iron (III) oxide is. How many grams of sulfur dioxide are produced by combining 350. How many grams of iron (III) hydroxide were used? b. It is primarily made up of iron and oxygen. g of iron in an excess of H2O? 2. 86 moles Now it is also a fact that each mole of H2O contains 1 mole of oxygen. So the number (moles) of iron atoms is twice the moles of the hematite molecules. How many moles of iron and oxygen are required to produce 10 moles of magnetic iron oxide?. 00 mol sample of iron(II) oxide is heated with 1. so depending on how much you initially have will determine the answer. 0 liters of an unknown gas, at standard temperature and pressure conditions, then you can calculate. Therefore, for the purpose of many investigations, the selective dissolution of iron oxides from the silicate clays, is an essential feature. Read More Asked in Atoms and Atomic. Now we need to look at the relative atomic mass of Iron - which is 56. Before modern mineral analysis, the name "limonite" was given to many of the yellowish to yellowish brown iron oxides produced during the weathering of iron-bearing rocks or deposited as bog, lake, and shallow marine sediments. where mass is in grams and the molar mass is in grams per mole. g of iron in an excess of H2O?. sulphide) is a chemical compound with the formula Fe S. Exhibit 8-1 For the following questions, consider the equation below. a mole of carbon would weigh 12g). The problem required two conversion factors – the mole ratio between iron and iron oxide and the molar mass of FeO. Coke is a substance made by heating coal until it becomes almost pure carbon. 25 moles of iron. 4 H 10) burns. So we want to find the formula and name of some iron oxide compound. 7 g of Fe reacts completely with oxygen? 23. 833 moles of CO2 produced. 0 kilograms of pure Fe 2 O 3 is used, how many kilograms of iron can be produced? The reaction is: Fe 2 O 3 + 3C 2Fe + 3CO 25. 7 mol FeO reacts with excess of CO asked by @zainabub1 • 8 months ago • Chemistry. How many grams of oxygen are produced if 155 grams of iron(III) oxide are decomposed by electrolysis? How many moles of water are produced if 50. Since the proportion of Mg to MgO is 1 to 1, then 0·417 moles of magnesium will give 0·417 moles of magnesium oxide. Calculate the mass of water that will react completely with 4. 0448/ (25/1000) = 1. Use stoichiometry to calculate the number of moles produced of Iron (lll) oxide given three moles of water. Solid calcium combines with oxygen gas to form solid calcium oxide. Ah yes you're right my bad! I forgot I changed some of the qs from my class exercise book to make the numbers easier, the mass in my book was 2. 003577818 moles of 2Fe must give you: [2. 9 mol of iron in the rusting reaction? #4Fe(s) + 3O_2(g) -> 2Fe_2O_3(s)#? Chemistry The Mole Concept The Mole. It undergoes a spectacular reaction to yield solid aluminum oxide and molten iron. Reaction of iron with air. are formed, how many moles of iron(III) acetate will be produced? Fe(OH) 3 + 3HC 2H 3O 2 Fe(C 2H 3O 2) 3 + 3H 2O 4. grams of iron(III) oxide, which substance is the limiting reactant? How many grams of Iron are produced? How much reactant is in excess? 6Na + Fe 2 O 3--> 3Na 2 O + 2Fe. 0800 mole of Ba, 0. Iron(II,III) oxide is the chemical compound with formula Fe 3 O 4. What Is The Symbol And Word Equation For Iron Rusting? Chemistry. Moles calculation aimed at AS chemistry or International Baccalaureate standard. Solid calcium combines with oxygen gas to form solid calcium oxide. Example 4: Calculate the number of moles in 1. 25 moles of carbon monoxide. Show all work in your notebook, including dimensional analysis and units! 1. I-IQW many grams of iron are formed when 150?. Hint : To find which reactant is in excess, calculate how many moles of one reactant are required to react with the other reactant. 4 mol of iron in the rusting reaction?. When 2 mole of H 2 O (l) is produced 890. In the synthesis, at higher NH 4 OH concentrations, smaller sized nanoparticles were obtained. For ions, the oxidation number is equal to their charge For single hydrogen, the number is usually +1 but in some cases it is -1 For oxygen, the number is usually -2 The sum of the oxidation number (ONs) of all the atoms in the molecule or ion is equal to its total charge. When 36 Og of H20 is mixed With B. so depending on how much you initially have will determine the answer. Copper(I) oxide solid is produced in a combination reaction with solid copper and oxygen gas a. 5 g of Iron (III) oxide is produced from 8. How Many Moles Of Oxygen Gas, O2, Are Needed To Produce 2. How many moles of iron III oxide will be produced? A) How mansy moles of iron III oxide will be produced by the reaction of 154g of iron? 4Fe + 3O2 --> 2Fe2O3. How many moles of iron and oxygen are required to produce 10 moles of magnetic iron oxide?. Moles: Moles are a unit. It occurs in nature as the mineral magnetite. asked by honeybee on September 6, 2010; Chemistry. What mass of iron is produced when 450. The reaction between iron(III) oxide and aluminum, to produce aluminum oxide and iron, has a heat of reaction (ΔH) equal to -851. Read More Asked in Atoms and Atomic. 85 g of butane (C. Use the molar mass of iron to convert the mass of iron used to moles. Iron oxide is converted into iron by carbon monoxide according to the equation: Fe20 30 -302 (unbalanced) Calculate the mass of iron, which could be obtained from 1. Organic iron occurs when iron combines with an organic acid. Fe 3 O 4 (s) + 4CO(g) 3Fe(s) + 4CO 2 (g) 9. For example, in Ca(OH)2 + 2 HCl → CaCl2 + 2 H2O, the stoichiometric ratio between HCl and Ca(OH)2 is 2:1 because the coefficients in front of the formulas in the balanced. Iron(II) hydroxide or ferrous hydroxide is an inorganic compound with the formula Fe(OH) 2It is produced when iron(II) salts, from a compound such as iron(II) sulfate, are treated with hydroxide ions Iron(II) hydroxide is a white solid, but even traces of oxygen impart a greenish tinge [Online Chat]. 0053667263 moles of CO. 96 g Fe x 0. You can view more details on each measurement unit: molecular weight of Fe2O3 or mol This compound is also known as Ferric Oxide or Hematite or Iron(III) Oxide. Video transcript. How many grams of iron (III) oxide are produced when starting with 74. 100 grams Iron to mol = 1. You can identify a metal by carefully determining its density. 0 mol Al? 12. 69 g/mol So, the iron is 111. 23 g of pure iron, wh? If 2. Determine the mass of iron in 200g of Fe2O3. How many grams of hydrochloric acid were needed to produce this amount of carbon dioxide? Fe + H2O ( Fe2O3 + H2. The ores, which are mainly the oxides, are reduced to iron with carbon (coke) at high temperatures in a blast furnace. Answers: Moles and Stoichiometry Practice Problems 1) How many moles of sodium atoms correspond to 1. Hint : To find which reactant is in excess, calculate how many moles of one reactant are required to react with the other reactant. 43 moles = 10. You must balance the equation in order to answer the subsequent questions a-c. 00 moles of Fe 3 O 4. that 2 magnesiums will give 2 magnesium oxides. 0 moles of iron(III) oxide?. 890 moles of sulfur dioxide were produced, how many moles of oxygen gas were required to react with the lead (II) sulfide?. iron oxide product collected This value matches the amount of product observed in the experiment, so it's likely that reaction (2) is the correct one and that the iron oxide product is iron(III) oxide. Red and yellow ochre pigments abound at the surface in Minas Gerais, Brazil. Find right answers rigt now! If 4. 890 moles of sulfur dioxide were produced, how many moles of oxygen gas were required to react with. How many moles of hydrogen are produced from the reaction of three moles of Iron will react with oxygen to Carbon will react with zinc oxide to produce zinc. moles of iron oxide and 0. Iron III Oxide is Fe2O3. 2Al + Fe2O3 --> 2Fe + Al2O3 If 3. Moles calculation aimed at AS chemistry or International Baccalaureate standard. The number of moles and the mass of sodium nitrate, NaNO 3, required to produce 128 g of oxygen. 0g of ethane (C2H6) undergoes combustion? 3. That is, the complete reaction requires twice as many moles of magnesium as there are moles of oxygen. Solid iron (Ill) hydroxide decomposes to produce iron (Ill) oxide and water vapor. How many moles of barium nitrate will be needed to produce 0. Final Exam Review. 58 mol of O atoms to make. Calculate standard change of enthalpy for reaction and compute how much heat is produced from a warmer containing 15. Date Agenda Homework How many moles of silver oxide can be produced from 2 moles of silver? How many iron particles are formed when 43. 022 x 10 atoms Na 2) Determine the mass in grams of each of the following: a. Now we need to look at the relative atomic mass of Iron - which is 56. Stability diagram of the different iron oxides as a function of temperature and oxygen content [2]. 0 grams of magnesium, Mg? 0. When lead (II) sulfide is burned in air, lead (II) oxide and sulfur dioxide are produced. Well 85 grams of iron three oxide is equal to 85 over 160 moles. 3 g Al 1 mol Al 1 mol Al2O3 102 g Al2O3 = 4. Calculate the mass of iron (III) oxide produced by the reaction of 500g of iron with oxygen from the air. 0 g of iron and enough steam. 320 mole of O. 5O2(g) = Fe2O3 Change in Free Energy: ΔG(20C) = -744. How many grams of oxygen are required to produce 0. Iron (III) chloride can be made by the reaction of iron with chlorine gas. Example: Calculate the mass of (a) 2 moles and (b) 0. A titanium ore contains rutile (TiO2) plus some iron oxide and silica. 845 and you have the mass of iron in grams. According to the equation, how many moles of O 2 (g) are required to react with 2 moles of C(s)? d. 56 -x 1021 atoms Na x 1 mol Na = 2.