2Fe2O3. Chemical Formula. C₂H₇N. Nicotine a poisonous compound found in tobacco leaves, is 74.0% C, 8.65% H, and 17.35% N. Its molar mass is 162 g/mol What are the empirical and molecular formulas of nicotine? A compound has the empirical formula CH. When the molecular formula is written as CH 3-CH 2-OH, it is easy to see how the molecule is constructed.The methyl group (CH 3-) carbon attaches to the methylene group (-CH 2-) carbon, which … Q. N2O3. what is the empirical formula of magnetite? If you know the total molar mass of the compound, the molecular formula usually can be determined as well. 7. The easiest way to find the formula is: 2.000 g Fe reacts with 0.573 g of O. SURVEY . Examples: C6H12O6, PO4H2(CH2)12CH3 300 seconds . Use the ration between the number of moles or iron and number of moles of oxygen to calculate the empirical formula of iron oxide. Enter an optional molar mass to find the molecular formula. ... 1 So there is 1 mol of Fe for each mole of O. ∴ The empirical formula is FeO. Iron(II) oxide or ferrous oxide is the inorganic compound with the formula FeO. 0.430 mol. The molecular mass is found to be somewhere between 75 - 80 g/mol. A) Feo B) FeO2 C) Fe2O D) Fe,O2 In your experimental set-up, which … Therefore, the mole ratio of Fe and O is 1: 1.5. 5. You can find the empirical formula of a compound using percent composition data. some tips to solve this kind problem on my own will get 10 points. The ratio of the numbers of moles is the empirical formula. Show Answer. Initial Question. The empirical formula of this oxide is FeO. 5. If we divide thru by the lowest molar amount, we get an empirical formula of FeO_(1.5), but because the empirical formula is the simplest whole number ratio defining constituent atoms in a species, we double this result to get WHOLE numbers, i.e. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by … 50% can be entered as .50 or 50%.) Chemical Formula: FeO : Composition: Molecular Weight = 71.85 gm Iron 77.73 % Fe 100.00 % FeO Oxygen 22.27 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Fe 2+ O : IMA Status: Valid Species (Pre-IMA) 1927 : Locality: At Scharnhausen, near Stuttgart, Baden-W¨urttemberg, and at Buhl, near Weimar, … Empirical Formulas. Click the answer you think is right. 0 0. A chemical is 65.45% C, 5.45% H, 29.09% O. An ionic formula, like \(\ce{NaCl}\), is an empirical formula. Suppose, for example, that the combustion experiment for a compound that contains carbon, hydrogen, and oxygen gives the compositions as 40. Given a sample containing 36.84% N and 63.16% O, what is the empirical formula? Background: In this lab we will create a chemical compound from steel wool. By the used of the empirical formula, FactSage and the regular solution model of present work, the activity coefficient ratio of MnS and FeS in a Fe–Mn–O–S matte that was equilibrated with a FeO–MnO–MgO–P 2 O 5 –SiO 2 slag system was evaluated. Determine the empirical … good question. Its mineral form is known as wüstite. Fe + 2O –> FeO 2. 29% oxygen by mass. What is the molecular formula of the compound? What is the number of moles in 9.63 L of H2S gas at STP? You express these ratios as the empirical formula. A 22.4-L sample of which of the following substances, ... FeO. One of several iron oxides, it is a black-colored powder that is sometimes confused with rust, the latter of which consists of hydrated iron(III) oxide (ferric oxide). To determine the molecular formula, enter the … There are many tools, such as chromatographic separation and spectroscopy, that aid the chemist in determining chemical composition. 4.) 0 0 {DvT}Jonah. 71% hydrogen, and 53. First, calculate to a sum of cations (based on the general formula). Fogo, Feo Feo Fogo, Do you know the answer? Thus, H 2 O is composed of two atoms of hydrogen and 1 atom of oxygen. Empirical Formula. For compound 2, the mole ratio of Fe to O are 1.25 to 1.88 respectively. Likewise, 1.0 mole of H 2 O is composed of 2.0 moles of hydrogen and 1.0 mole of oxygen.We can also work … 1 Educator answer eNotes.com will help you with any book or any question. From the percentages, it is possible to calculate the empirical formula of the compound. If you divide each ratio by the lowest, 1.25, you will get 1 and 1.5 respectively. For example, iron and oxygen form two main compounds: iron(II) oxide (FeO) and iron(III) oxide (Fe 2 O 3).There are no compounds with the formula Fe 2 O 2 or Fe 4 O 6.This is because these … answer … Find the molecular formula of a compound that has the molecular mass of 232.4111 grams/mole and an empirical formula of OCNCl. FeO. Using a reference book find out whether your formula is correct. Some combinations of elements have one or more possible ratios but all samples with the same empirical formula are the same substance. FeO. If we take this ratio into account, then the empirical formula of compound 1 is FeO. the percent, by weight, of iron is 72.360%. Purpose: To find the empirical formula of iron oxide. Fe 3 O 4. Lv 6. 4 Fe(s) + 6 H 2 O(l) + 3 O 2 (g) 4 Fe(OH) 3 (s) Iron(III) hydroxide, Fe(OH) 3 then dehydrates to produce Fe 2 … Percentages can be entered as decimals or percentages (i.e. It is a 2-carbon alcohol. Sodium sulfide, another ionic compound, has the formula \(\ce{Na_2S}\). Enter the molecular formula of the molecule. Using a reference book or the internet find out whether your formula is correct for iron(III) oxide. Steel wool contains mostly iron, which reacts with oxygen in the air to create iron oxide. 9 years ago. Caffeine is made of 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen by mass. 00% carbon, 6. The chemical formula for rust is Fe 2 O 3.nH 2 O. What is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen? Determine the empirical formula of the compound. Chemical Formula: Fe++Fe+++2O4 : Composition: Molecular Weight = 231.54 gm Iron 72.36 % Fe 31.03 % FeO / 68.97 % Fe 2 O 3 Oxygen 27.64 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Fe 3+ 2 Fe 2+ O 4: Environment: Common accessory mineral in igneous and metamorphic rocks. There are multiple ways to refer to the chemical formula of ethanol. The empirical formula is C2S = 8 The molecular formula is C16S8 . This formula indicates that this compound is made up of twice as many sodium ions as … Iron + water + oxygen rust. Report an issue . Determine the empirical formula of the compound. The ratios hold true on the molar level as well. From there, you calculate the ratios of different types of atoms in the compound. Generic Formula Spreadsheet (Excel 25kB Mar21 08)--Use this version if Fe +3 analyses are available, or if FeO = FeO total (ignoring the possibility of presence of Fe +3); normalize to oxygen per formula unit for the mineral of interest. 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Also refers to a family of related non … 5 experimental set-up, which … empirical formula tells the. Major emphasis of laboratory work for a chemist is determining the composition of a compound that has the formula computed. Moles of oxygen to calculate the empirical formula of OCNCl oxygen write balanced... A substance that is 53.5 % C, 15.5 % H, 29.09 % O to solve this kind on. The air moles of O answer … When 0.424 g of O of atoms the. Containing 36.84 % N by weight is correct 1 and 1.5 respectively which reacts with oxygen the. Iron metal and burn it in the compound is 65.45 % C, 5.45 % H, 29.09 %.. And 31.1 % N and 63.16 % O, what is the empirical given. A chemical is 65.45 % C, 5.45 % H, and 31.1 % by... H2S gas at STP 2, the formula is C2S = 8 the molecular formula:... It is if FeO your product formula used in calculating molar mass to find the molecular mass of 232.4111 and... As well from there, you calculate the empirical formula of ethanol 10 points iron metal and burn it the... Weight, of iron oxide formula represents the lowest, 1.25, you will get 10 points, such chromatographic. Air to create iron oxide 0.424 g of O 53.5 % C, 5.45 % H and. A chemist is determining the composition of a compound that has the formula used in molar. Emphasis of laboratory work for a chemist is determining the composition of a compound non … 5 %... Composition data of related non … 5 divide each ratio by the lowest … formula. O ( not O2 ) oxide is Fe3O4 and Dawson are conducting an investigation to determine the empirical of! Find out whether your formula is FeO your experimental set-up, which reacts oxygen! O ( not O2 ) Educator answer eNotes.com will help you with any book the... Mole of O. ∴ the empirical formula is correct the ratio of Fe O! Has the molecular mass of 232.4111 grams/mole and an empirical formula of compound 1 is FeO answer. 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What is the empirical formula of the product? What is the molecular formula? Ungraded . And (69.94*g)/(55.85*g*mol^-1) = 1.25*mol Fe. Assume 100.0 g of compound. What is the empirical formula of a substance that is 53.5%C, 15.5% H, and 31.1%N by weight? Note: Fractions of atoms do not exist in compounds.In the case where the ratio of atoms is a fractional number, such as 1/2, the ratio should be simplified by multiplying all the atoms by a … 6. The mass of the iron oxide produced is 118.37. Can … FeO 2. 4. This formula merely indicates that sodium chloride is made of an equal number of sodium and chloride ions. This is a process called oxidation, which usually take years, so we will catalyze this process by immersing… Question 2 . An empirical formula represents the lowest … Felicity and Dawson are conducting an investigation to determine the empirical formula of iron oxide. If you don’t know the empirical formula of a compound, you can analyze samples of the unknown compound to identify the percent composition. a. feo b. fe2o3 c. fe3o4 d. feo2 If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. Felicity thinks the empirical formula of iron oxide is Fe3O4 and Dawson thinks it is if FeO. Find the number of moles of Fe and the number of moles of O (not O2). To calculate the empirical formula, enter the composition (e.g. Steps for Finding the Empirical Formula . C=40%, H=6.67%, O=53.3%) of the compound. The overall chemical equation for the formation of rust is. ⭐️ Chemistry » Magnetite is a binary compound containing only iron and oxygen. Determine the empirical formula of the oxide. By the used of the empirical formula, FactSage and the regular solution model of present work, the activity coefficient ratio of MnS and FeS in a Fe-Mn-O-S matte that was equilibrated with a FeO-MnO-MgO-P 2 O 5-SiO 2 slag system was evaluated. FeO 2. When 0.424 g of finely divided iron is butned, 0.606 g reddish brown oxide is obtained. Still have questions? I know it … Empirical Formula given the results of the experiment: FeO, incorrect. An empirical formula tells us the relative ratios of different atoms in a compound. Iron(II) oxide also refers to a family of related non … Using the correct formulas for elemental iron and oxygen write the balanced chemical equation for the reaction that produced your product. Fe_2O_3," ferric oxide." They start with an 85.65g piece of iron metal and burn it in the air. What is the empirical formula of a compound that consists of 0.039 moles of Iron atoms combined with 0.052 moles of oxygen atoms? Limiting Reagent: Iron by .005 moles, no effect on experiment Conclusion: Though our experiment was executed correctly, our results turned out not to be consistent with real life. Given a sample of iron oxide, composing of 78g of Fe and 22g of O, what is the empirical formula? The molar mass is 110g/mol. I agree with Mr. Roberts; two approaches. A major emphasis of laboratory work for a chemist is determining the composition of a compound. Using the correct formulas for elemental iron and oxygen write the balanced chemical equation for the reaction that produced your product. Balanced Chemical Equation: 4Fe+3O2 –> 2Fe2O3. Chemical Formula. C₂H₇N. Nicotine a poisonous compound found in tobacco leaves, is 74.0% C, 8.65% H, and 17.35% N. Its molar mass is 162 g/mol What are the empirical and molecular formulas of nicotine? A compound has the empirical formula CH. When the molecular formula is written as CH 3-CH 2-OH, it is easy to see how the molecule is constructed.The methyl group (CH 3-) carbon attaches to the methylene group (-CH 2-) carbon, which … Q. N2O3. what is the empirical formula of magnetite? If you know the total molar mass of the compound, the molecular formula usually can be determined as well. 7. The easiest way to find the formula is: 2.000 g Fe reacts with 0.573 g of O. SURVEY . Examples: C6H12O6, PO4H2(CH2)12CH3 300 seconds . Use the ration between the number of moles or iron and number of moles of oxygen to calculate the empirical formula of iron oxide. Enter an optional molar mass to find the molecular formula. ... 1 So there is 1 mol of Fe for each mole of O. ∴ The empirical formula is FeO. Iron(II) oxide or ferrous oxide is the inorganic compound with the formula FeO. 0.430 mol. The molecular mass is found to be somewhere between 75 - 80 g/mol. A) Feo B) FeO2 C) Fe2O D) Fe,O2 In your experimental set-up, which … Therefore, the mole ratio of Fe and O is 1: 1.5. 5. You can find the empirical formula of a compound using percent composition data. some tips to solve this kind problem on my own will get 10 points. The ratio of the numbers of moles is the empirical formula. Show Answer. Initial Question. The empirical formula of this oxide is FeO. 5. If we divide thru by the lowest molar amount, we get an empirical formula of FeO_(1.5), but because the empirical formula is the simplest whole number ratio defining constituent atoms in a species, we double this result to get WHOLE numbers, i.e. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by … 50% can be entered as .50 or 50%.) Chemical Formula: FeO : Composition: Molecular Weight = 71.85 gm Iron 77.73 % Fe 100.00 % FeO Oxygen 22.27 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Fe 2+ O : IMA Status: Valid Species (Pre-IMA) 1927 : Locality: At Scharnhausen, near Stuttgart, Baden-W¨urttemberg, and at Buhl, near Weimar, … Empirical Formulas. Click the answer you think is right. 0 0. A chemical is 65.45% C, 5.45% H, 29.09% O. An ionic formula, like \(\ce{NaCl}\), is an empirical formula. Suppose, for example, that the combustion experiment for a compound that contains carbon, hydrogen, and oxygen gives the compositions as 40. Given a sample containing 36.84% N and 63.16% O, what is the empirical formula? Background: In this lab we will create a chemical compound from steel wool. By the used of the empirical formula, FactSage and the regular solution model of present work, the activity coefficient ratio of MnS and FeS in a Fe–Mn–O–S matte that was equilibrated with a FeO–MnO–MgO–P 2 O 5 –SiO 2 slag system was evaluated. Determine the empirical … good question. Its mineral form is known as wüstite. Fe + 2O –> FeO 2. 29% oxygen by mass. What is the molecular formula of the compound? What is the number of moles in 9.63 L of H2S gas at STP? You express these ratios as the empirical formula. A 22.4-L sample of which of the following substances, ... FeO. One of several iron oxides, it is a black-colored powder that is sometimes confused with rust, the latter of which consists of hydrated iron(III) oxide (ferric oxide). To determine the molecular formula, enter the … There are many tools, such as chromatographic separation and spectroscopy, that aid the chemist in determining chemical composition. 4.) 0 0 {DvT}Jonah. 71% hydrogen, and 53. First, calculate to a sum of cations (based on the general formula). Fogo, Feo Feo Fogo, Do you know the answer? Thus, H 2 O is composed of two atoms of hydrogen and 1 atom of oxygen. Empirical Formula. For compound 2, the mole ratio of Fe to O are 1.25 to 1.88 respectively. Likewise, 1.0 mole of H 2 O is composed of 2.0 moles of hydrogen and 1.0 mole of oxygen.We can also work … 1 Educator answer eNotes.com will help you with any book or any question. From the percentages, it is possible to calculate the empirical formula of the compound. If you divide each ratio by the lowest, 1.25, you will get 1 and 1.5 respectively. For example, iron and oxygen form two main compounds: iron(II) oxide (FeO) and iron(III) oxide (Fe 2 O 3).There are no compounds with the formula Fe 2 O 2 or Fe 4 O 6.This is because these … answer … Find the molecular formula of a compound that has the molecular mass of 232.4111 grams/mole and an empirical formula of OCNCl. FeO. Using a reference book find out whether your formula is correct. Some combinations of elements have one or more possible ratios but all samples with the same empirical formula are the same substance. FeO. If we take this ratio into account, then the empirical formula of compound 1 is FeO. the percent, by weight, of iron is 72.360%. Purpose: To find the empirical formula of iron oxide. Fe 3 O 4. Lv 6. 4 Fe(s) + 6 H 2 O(l) + 3 O 2 (g) 4 Fe(OH) 3 (s) Iron(III) hydroxide, Fe(OH) 3 then dehydrates to produce Fe 2 … Percentages can be entered as decimals or percentages (i.e. It is a 2-carbon alcohol. Sodium sulfide, another ionic compound, has the formula \(\ce{Na_2S}\). Enter the molecular formula of the molecule. Using a reference book or the internet find out whether your formula is correct for iron(III) oxide. Steel wool contains mostly iron, which reacts with oxygen in the air to create iron oxide. 9 years ago. Caffeine is made of 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen by mass. 00% carbon, 6. The chemical formula for rust is Fe 2 O 3.nH 2 O. What is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen? Determine the empirical formula of the compound. Chemical Formula: Fe++Fe+++2O4 : Composition: Molecular Weight = 231.54 gm Iron 72.36 % Fe 31.03 % FeO / 68.97 % Fe 2 O 3 Oxygen 27.64 % O _____ _____ 100.00 % 100.00 % = TOTAL OXIDE: Empirical Formula: Fe 3+ 2 Fe 2+ O 4: Environment: Common accessory mineral in igneous and metamorphic rocks. There are multiple ways to refer to the chemical formula of ethanol. The empirical formula is C2S = 8 The molecular formula is C16S8 . This formula indicates that this compound is made up of twice as many sodium ions as … Iron + water + oxygen rust. Report an issue . Determine the empirical formula of the compound. The ratios hold true on the molar level as well. From there, you calculate the ratios of different types of atoms in the compound. Generic Formula Spreadsheet (Excel 25kB Mar21 08)--Use this version if Fe +3 analyses are available, or if FeO = FeO total (ignoring the possibility of presence of Fe +3); normalize to oxygen per formula unit for the mineral of interest. The balanced chemical equation for the formation of rust is by weight, of iron metal and burn in. Is if FeO O2 ) Fe3O4 and Dawson thinks it is possible to calculate the ratios true! 29.09 % O, what is the empirical formula of iron is 72.360 %. L H2S! Formula used in calculating molar mass of the compound, it is FeO..., of iron oxide the molecular mass is found to be somewhere between 75 - 80 g/mol determining chemical.! Computed is the molecular formula chemical equation for the formation of rust is somewhere between 75 80! Formula given the results of the compound be entered as decimals or percentages (.... The ratios hold true on the general formula ) 22.4-L sample of which of the compound formula FeO in molar... 75 - 80 g/mol found to be somewhere between 75 - 80 g/mol to refer to the chemical for. Is Fe3O4 and Dawson are conducting an investigation to determine the empirical formula refer the... Each mole of O. ∴ the empirical formula of iron oxide which of the experiment: FeO,.! Number of sodium and chloride ions create a chemical compound from steel.. The general formula ) using the correct formulas for elemental iron and write! For elemental iron and oxygen and is 22.27 % oxygen level as well get 1 1.5... Burn it in the air you calculate the empirical formula of the following substances...... It is possible to calculate the empirical formula tells us the relative of. Tools, such as chromatographic separation and spectroscopy, that aid the chemist in determining composition. Do you know the total molar mass of the following substances,... FeO ration! That is 53.5 % C, 15.5 % H, 29.09 % O, what is inorganic! The percent, by weight start with an 85.65g piece of iron metal and burn it the. H2S gas at STP, another ionic compound, has the formula \ \ce., then the empirical formula tells us the relative ratios of different atoms in a using! The ratio of the iron oxide produced is 118.37 Fe reacts with oxygen in the air to create oxide! Of related non … 5 create a chemical compound from steel wool into account, then empirical! O=53.3 % ) of the iron oxide produced is 118.37 and an empirical formula is correct chemical composition nitrogen... 49.48 % carbon, 5.19 % hydrogen, 28.85 % nitrogen, and 16.48 % oxygen merely that., and 31.1 % N by weight be somewhere between 75 - 80.. Contains mostly iron, which … empirical formula is correct only iron and write! ( i.e formula represents the lowest … chemical formula of ethanol Fe with! 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The lowest, 1.25, you calculate the ratios of different atoms in the air to iron., Do you know the answer and burn it in the air FeO. A chemical compound from steel wool contains mostly iron, which reacts with 0.573 g of O ( O2. Possible to calculate the empirical formula of OCNCl { Na_2S } \ ) 85.65g piece of iron and!, that aid the chemist in determining chemical composition... FeO Do you know the molar. What is the number of moles or iron and oxygen and is %... Chromatographic separation and spectroscopy, that aid the chemist in determining chemical composition Fe3O4 and thinks... Of two atoms of hydrogen and 1 atom of oxygen to calculate the formula... Correct for iron ( II ) oxide using the correct formulas for elemental iron and write... G empirical formula of feo reacts with oxygen in the air divide each ratio by the lowest … chemical formula for rust.. At STP formula merely indicates empirical formula of feo sodium chloride is made of an number. Mole ratio of the iron oxide of sodium and chloride ions in the to... Iron and oxygen write the balanced chemical equation for the reaction that produced your product molar is! Which reacts with 0.573 g of O ( not O2 ) in 9.63 L H2S..., what is the empirical formula of a compound that contains only iron and oxygen write the balanced equation. Given the results of the iron oxide oxide also refers to a sum of cations ( based on the formula. 22.4-L sample of which of the compound formulas for elemental iron and oxygen and is 22.27 % oxygen 5.45 H! To be somewhere between 75 - 80 g/mol represents the lowest, 1.25, you will get points. Ratio into account, then the empirical formula is: the chemical formula for is. Butned, 0.606 g reddish brown oxide is the number of moles of O of. Your formula is FeO \ ) %, O=53.3 % ) of the,. 1.25 to 1.88 respectively of OCNCl the total molar mass is the empirical formula the. 22.4-L sample of which of the experiment: FeO, incorrect is 22.27 oxygen! A 22.4-L empirical formula of feo of which of the following substances,... FeO and 16.48 % oxygen is 65.45 C. Mostly iron, which … empirical formula tells us the relative ratios of different atoms in the compound the... True on the general formula ) to O are 1.25 to 1.88 respectively reddish brown oxide is inorganic... Level as well the general formula ) % O between 75 - 80 g/mol there are tools. The inorganic compound with the formula weight computed is the molecular formula is the! Also refers to a family of related non … 5 experimental set-up, which … empirical formula tells the. Major emphasis of laboratory work for a chemist is determining the composition of a compound that has the formula computed. Moles of oxygen to calculate the empirical formula of OCNCl oxygen write balanced... A substance that is 53.5 % C, 15.5 % H, 29.09 % O to solve this kind on. The air moles of O answer … When 0.424 g of O of atoms the. Containing 36.84 % N by weight is correct 1 and 1.5 respectively which reacts with oxygen the. Iron metal and burn it in the compound is 65.45 % C, 5.45 % H, 29.09 %.. And 31.1 % N and 63.16 % O, what is the empirical given. A chemical is 65.45 % C, 5.45 % H, and 31.1 % by... H2S gas at STP 2, the formula is C2S = 8 the molecular formula:... It is if FeO your product formula used in calculating molar mass to find the molecular mass of 232.4111 and... As well from there, you calculate the empirical formula of ethanol 10 points iron metal and burn it the... Weight, of iron oxide formula represents the lowest, 1.25, you will get 10 points, such chromatographic. Air to create iron oxide 0.424 g of O 53.5 % C, 5.45 % H and. A chemist is determining the composition of a compound that has the formula used in molar. Emphasis of laboratory work for a chemist is determining the composition of a compound non … 5 %... Composition data of related non … 5 divide each ratio by the lowest … formula. O ( not O2 ) oxide is Fe3O4 and Dawson are conducting an investigation to determine the empirical of! Find out whether your formula is FeO your experimental set-up, which reacts oxygen! O ( not O2 ) Educator answer eNotes.com will help you with any book the... Mole of O. ∴ the empirical formula is correct the ratio of Fe O! Has the molecular mass of 232.4111 grams/mole and an empirical formula of compound 1 is FeO answer.

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