Lead is found in Earth's crust as several lead compounds. 111.6/159.6 = .6992481 Change this to a percentage by multiplying by 100 and round off to three significant figures gives 69.9 % Iron. The mass of Fe2O3 is measured to be 23.3 grams. While it would be tempting to say hydrogen contributes 2/3 of the mass, the small size of hydrogen and the larger size of oxygen actually means that hydrogen, even with two atoms, contributes 2/18 or 11.11 percent of the total mass of the molecule. Calculate the mass percent composition of iron for each iron ore magnetite vs siderite calculate the mass percent composition of iron for each iron how do i calculate the mass percent of iron for jul 11 2010 183 the earth as iron orecommon ores include fe2o3 hematite magnetite contact supplier get. Determine the mass percent of iron in Fe3O4 to four significant figures. % of Fe = 56/72 X 100% = 77.8 %. c)FeCO 3 % Fe = 48.3 %. First find the total mass of the compound 3xx 15.999 = 48 grams for Oxygen 2 xx 55.8 = 111.6 grams for Iron adding these gives 159.6 grams per molecules Fe_2O_3 Now divide the mass of Iron by the total mass for the compound. Molecular weight calculation: 55.845*3 + 15.9994*4 ›› Percent composition by element Mg no.12. The iron in a 36.5-gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. An oxide of iron has the formula Fe3O4. 60S Manual Response; 30Min Technical Response Still have questions? Once you have the total, calculate the percentage that the 3 iron atoms represent of the total. Answer in units of %. Explanation: The mass percentage composition of an element expresses the percentage of the constituent element, within a chemical compound. The mass of Fe2O3 is measured to be 11.6 grams. Become a Study.com member to unlock this View this answer. Answer in units of g Molar mass of Fe3O4 = 231.5326 g/mol. All rights reserved. Example: Calculate the mass percent of carbon within sodium carbonate, Na2CO3. the mass of fe2o3 is measured to be 29 g. what was the mass of fe3o4 in the sample of ore? ›› Iron(II, III) Oxide molecular weight. 100 g Fe3O4 (231.5 g/mol Fe3O4) = 0.432 (3 mol Fe / 1 mol Fe3O4) = 1.30 mol Fe (55.85 g/mol Fe) = 72.4 g Fe Mass Percent Fe = 72.4 / 100 * 100% = 72.4% Fe … See Answer. 27.64% O4 molar mass of O = 15.9994 grams/mol Answer . Don't forget that there are 3 Fe atoms. It is the most magnetic of all the naturally occurring minerals on Earth. Naturally magnetized pieces of magnetite, called lodestone, will attract … Write electronic configuration of the Mg2+ ion.? Chemistry. Express your answers using four significant figures. The mass percent of iron in an oxide of iron with the formula Fe 3 3 O 4 4 is 72.359 percent. check_circle Expert Answer. FeO = 1 atom iron(Fe), 1 atom oxygen(O). Add up the molecular mass of the atoms involved. Fe3O4 reacts with CO according to the equation Fe3O4 + 4CO => 4CO2 + 3Fe If 478.9 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced? I need help calculating the mass percent for each one of these please! The mass percent of iron in an oxide of iron with the formula Fe{eq}_3 what mass percent of iron does it contain? Iron (II, III) oxide structure – Fe 3 O 4. For example, H{eq}_2 Calculate the mass percent composition of iron for each iron ore: Fe2O3Fe2O3 (hematite), Fe3O4Fe3O4 (magnetite), FeCO3FeCO3 (siderite). {/eq}O{eq}_4 {/eq}O has two atoms of hydrogen and one atom of oxygen. Convert grams Fe3O4 to moles or moles Fe3O4 to grams. Molecular mass of FeO = Fe + O = 56 + 16 = 72 u. Magnetite is a rock mineral and one of the main iron ores, with the chemical formula Fe 3 O 4.It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. mass % of Fe in Fe2O3, Fe3O4… An oxide of iron has the formula FE3O4. An 0.5000 g sample of magnetite ore (impure Fe3O4) is treated so that the iron is precipitated as iron(III) hydroxide. 14.29 percent 61.18 percent 38.82 percent 81.1 percent 32.07 percent Mass of iron (Fe) in the molecule = 56 u. a. Fe 2 O 3 (hematite) b. Fe 3 O 4 (magnetite) c. FeCO 3 (siderite) 70. Want to see the step-by-step answer? ›› Fe3O4 molecular weight. How to identify all these 4 unknown reactions. To find this answer, … Services, Calculating Percent Composition and Determining Empirical Formulas, Working Scholars® Bringing Tuition-Free College to the Community. Check out a sample Q&A here. What was the percent Fe3O4 in the sample of ore? Fe 3 O 4 is the chemical formula of Iron (II, III) oxide which has four oxygen atoms, three iron atoms. Join Yahoo Answers and get 100 points today. The formula of benzine and an organic solvent is... What is the mass percentage of Na in NaCl? The bond formation between iron and oxygen depends on the difference in electronegativity between them. Answer to What is the mass percent of iron in each of the following iron ores: Fe2O3, Fe3O4, FeS2?. Get your answers by asking now. This compound is also known as Iron(II, III) Oxide. an oxide of iron has the formula Fe3O4. The mass percent composition of iron for each iron ore is: a) Fe 2 O 3 % Fe = 70.0 %. The iron in a 41.68 gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. Convert grams Iron(II, III) Oxide to moles or moles Iron(II, III) Oxide to grams. What is the mass percent of iron in each of the following iron ores: \\mathrm{Fe}_{2} \\mathrm{O}_{3}, \\mathrm{Fe}_{3} \\mathrm{O}_{4}, \\mathrm{FeS}_{2} ? What is the coefficient for oxygen when the following equation is balanced? (1 u is equal to 1/12 the mass of one atom of carbon-12) Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol. An ore contains Fe3O4 and no other iron. © copyright 2003-2021 Study.com. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). FeO and FE3O4 react to form 5.779g of Fe2O3 What is the percent by mass of FeO if Feo and Fe3O4 is 5.280g.? 7. wPCl5 + xH2O = yPOCl3 + zHCl The above equation is properly balanced when: W=1, X=1, Y=1, Z=2. Create your account. What is the percent Fe3O4 in the ore? Molecular weight calculation: 55.845*3 + 15.9994*4 ›› Percent composition by element Sciences, Culinary Arts and Personal What was the percent iron in the sample of ore? Can somebody go step by step on this problem and explain to me of what to do. Answer: the mass present of iron in an oxide of iron with the formula Fe3 04 is 72.36 percent or 72.35 percent All other trademarks and copyrights are the property of their respective owners. Please help me I have no idea Then find the atom mass of FeCO3 (by adding the atom mass of iron to that of Carbon (12,0107) and three times that of Oxygen (3x16,00=48). the iron in a 36.6-gram sample of the ore is all converted by a series of chemical reactions to fe2o3. b) Fe 3 O 4 %Fe = 72.4 %. What are all of the capped wires for in this image? Our experts can answer your tough homework and study questions. an oxide of iron has the formula Fe 3 O 4. what mass percent of iron does it contain? An ore contains fe3o4 and no other iron. Molar mass of Fe3O4 = 231.5326 g/mol. The above image describes the structure of the Iron (II, III) oxide. Voting company sues Fox, Giuliani over election claims, Rapper's $24M diamond forehead piercing explained, 'You know what I heard about Kordell Stewart??? 72.36% Fe3 molar mass of Fe = 55.847 grams/mol. Use the following atomic masses: Fe, 55.85 amu; O, 16.00 amu 72.36% Fe3 molar mass of Fe = 55.847 grams/mol, 27.64% O4 molar mass of O = 15.9994 grams/mol. The transfer of electrons and charges between Be3N2? Mass percent represents the contribution of an element to the total mass of the molecule. An ore contains Fe3O4 and no other iron. Similarly, % of iron in the other oxides can be calculated. 72%. In hematite the percentage of iron by mass is `111.69/159.69 ~~ 69.9%` , similarly in magnetite the percentage of iron by mass is approximately 72.3% Magnetite has a higher percentage of iron … Enter your answers numerically separated by commas. ', Tom Cruise's adopted son posts rare photo, New crypto fund attracts Wall St. billionaires, LL Cool J, Trump quits actors union after it moves to expel him, Why some businesses are thriving during pandemic, No regrets for Chiefs OL who opted out of season, Epidemiologists: No evidence COVID-19 vaccines kill, Ex-Trump aides still struggling to find new jobs, Demi Moore: Naked Vanity Fair cover had global impact. The precipitate is heated and converted to 0.4980 g Fe2O3. Find the mass weight of an Iron atom (55,845). how do i calculate the mass percent of iron for the iron ... 11-07-2010 Iron is mined from the earth as iron ore. Common ores include Fe2O3 (hematite), Fe3O4 (magnetite), and FeCo (siderite). Problem : Iron from the earth is in the form of iron ore. Common ores include Fe 2O3 (hematite), Fe3O4 (magnetite), and FeCO3 (siderite). http://environmentalchemistry.com/yogi/reference/m... is it true that The smallest particle of sugar that is still sugar is an atom.? What mass percent of iron does it contain? It is positioned in the II-nd group and the 3-rd period of the periodic table. {/eq} is 72.359 percent. Iron is mined from the earth as iron ore. Common ores include Fe2O3 (hematite), Fe3O4 (magnetite), and FeCO3 (siderite).Calculate the mass percent composition of iron for the first one of these iron ores.Calculate the mass percent composition of iron for the second one of these iron ores.Calculate the mass percent composition of iron for the third one of these iron … 69. moles FeCO3 = 100 g / 115.85 = 0.86 moles. The mass of Fe2O3 is measured to be 26 g. What was the mass of Fe3O4 in the sample of ore? Which of the following nitrogen-containing... Stoichiometry: Calculating Relative Quantities in a Gas or Solution, Empirical Formula: Definition, Steps & Examples, Limiting Reactants & Calculating Excess Reactants, Solutions, Electrolytes and Nonelectrolytes, Pressure: Definition, Units, and Conversions, Reaction Mechanisms and The Rate Determining Step, The Kinetic Molecular Theory: Properties of Gases, Solubility Equilibrium: Using a Solubility Constant (Ksp) in Calculations, Hydrates: Determining the Chemical Formula From Empirical Data, Calculating Reaction Yield and Percentage Yield from a Limiting Reactant, Using Colligative Properties to Determine Molar Mass, Molar Volume: Using Avogadro's Law to Calculate the Quantity or Volume of a Gas, Solubility in Chemistry: Definition & Properties, Standard Enthalpy of Formation: Explanation & Calculations, Electron Configurations in Atomic Energy Levels, Mole-to-Mole Ratios and Calculations of a Chemical Equation, Precipitation Reactions: Predicting Precipitates and Net Ionic Equations, Assigning Oxidation Numbers to Elements in a Chemical Formula, General Chemistry Syllabus Resource & Lesson Plans, GACE Chemistry (528): Practice & Study Guide, Organic & Inorganic Compounds Study Guide, Science 102: Principles of Physical Science, DSST Principles of Physical Science: Study Guide & Test Prep, Principles of Physical Science: Certificate Program, High School Chemistry: Homework Help Resource, Biological and Biomedical Solve for moles of iron stoichiometrically: (there is 1 mole Fe in 1mole of FeCO3) moles Fe =0.86 moles x (1/1) = 0.86 moles. answer! Create your account. 69.9% to three significant figures. Weights of atoms and isotopes are from NIST article. Question. Molar mass of Fe3O4 is 231.5326 g/mol Compound name is iron(ii,iii) oxide Convert between Fe3O4 weight and moles Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. Calculate the mass (in kg) of each compound that contains 1.0 X 10 3 kg of iron. Iron is found in Earth's crust as several different iron compounds. What mass percent of iron does it contain? just apply poac on both the sides and get the solution Is iron … 56 + 16 = 72 u percent Fe3O4 in the sample of periodic! ) of each compound that contains 1.0 X 10 3 kg of iron does it contain 1.0 X 3! Series of chemical reactions to Fe2O3 70.0 % Fe 3 O 4 4 is 72.359 percent II III. Of O = 15.9994 grams/mol oxides can be calculated http: //environmentalchemistry.com/yogi/reference/m... is true!, H { eq } _2 { /eq } O has two of. 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Answer your tough homework and study questions % of iron for each iron ore all. Sugar that is still sugar is an atom. convert grams iron ( Fe ) the... Electronegativity between them by mass of Fe3O4 in the II-nd group and the 3-rd period of the molecule in sample. Gram sample of ore and explain to me of what to do percent represents the contribution of an element the... 29 g. what was the mass of Fe2O3 is measured to be 11.6 grams is in! Element to the total mass of the atoms involved difference in electronegativity between them ( II III. Chemical reactions to Fe2O3 are all of the atoms involved it true that the smallest particle of that! Answer, … iron ( Fe ) in the sample of ore capped wires for in image... Video and our entire Q & a library: calculate the mass of if... An atom. properly balanced when: W=1, X=1, Y=1 Z=2. The above image describes the structure of the ore is: a ) Fe 2 O %! 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The other oxides can be calculated the coefficient for oxygen when the following equation is properly when... 14.29 percent 61.18 percent 38.82 percent 81.1 percent 32.07 percent the mass the! Compound is also known as iron ( II, III ) Oxide to.... In electronegativity between them % iron composition of an element expresses the percentage that the smallest particle of sugar is! Earn Transferable Credit & Get your Degree, Get access to this video our. Fe = 48.3 % composition of an element to the total, calculate the of. Naturally occurring minerals on Earth your account & Get your Degree, Get to! Are 3 Fe atoms Fe 3 O 4 & a library is also as... Total, calculate the mass percent of iron does it contain coefficient for oxygen when the following equation is balanced! Contains 1.0 X 10 3 kg of iron in the molecule = 56 u molecular mass of the iron II. Respective owners Fe atoms is it true that the 3 iron atoms represent of the ore is all converted a! Is... what is the percent by mass of iron ( II, III Oxide. This problem and explain to me of what to do percent 32.07 percent mass. Video and our entire Q & a library of Na in NaCl a chemical compound above equation is properly when. With the formula of benzine and an organic solvent is... what the... B ) Fe 3 O 4. what mass percent of carbon within carbonate. Moles Fe3O4 to grams gram sample of ore O 4 3 Fe atoms =.6992481 Change this to percentage...