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2009-12-16 · the reaction between solid sodium and iron(III) oxide is one in a series of reactions that inflates an automobile airbag. 6Na(s) + Fe2O3(s) ---> 3Na2O(s) + 2Fe(s) If 100.0g Na and 100.0g Fe2O3 are used in this reaction, determine the limiting reactant the reactant in excess the mass of the solid iron produced the mass of excess reactant that remains after the reaction is complete

Please tell me what I did wrong on this problem: Given the equation Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g), Calculate the number of grams of CO that can react with 0.370kg of Fe2O3 Here's what I did: .370kg x 1000 = 370g of Fe2O3 . Chemistry due soon 由 (3)Fe3O4(s)+CO(g)=3FeO(s)+CO2(g) H3=-36.5kJ/mol 可得：3FeO(s)+CO2(g)=Fe3O4(s)+CO(g) H4=+36.5kJ/mol 由（2）Fe2O3（s）+1/3CO(g)=2/3Fe3O4(s)+1/3CO2(g) H2=-15.73kJ/mol 可得：2/3Fe3O4(s)+1/3CO2(g)=Fe2O3（s）+1/3CO(g) H5=+15 2010-12-31 · Given the unbalanced equation: Fe_2 O_3 + CO = Fe + CO_2 A 24.0 gram sample of iron(III) oxide is mixed with a 8.40 gram sample of carbon monoxide and allowed to react. What is the theoretical number of iron metal which can be obtained from the balanced equation? I got ~16.8 grams of iron but the answer key says ~11.2 grams.

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ΔHfo(CO(g)) = -110.5 Iron (III) Oxide + Aluminium = Aluminium Oxide + Iron. The thermite reaction is so exothermic that the reactio mixture reaches a temperature of over 2000 Cel 2Fe–2S clusters[edit] The simplest polymetallic system, the [Fe2S2] cluster, is constituted by two iron ions bridged by two sulfide ions and coordinated by four Biotin synthase (BioB) converts dethiobiotin into biotin by inserting a sulfur atom between C6 and C9 of dethiobiotin in an S-adenosylmethionine FdVI from Rhodobacter capsulatus is structurally related to a group of [2Fe-2S] ferredoxins involved in iron-sulfur cluster biosynthesis. Comparative genomics 11 Apr 2020 The spontaneous redox reaction`//s` among the follow is`//` are `(a)` `2Fe^(3+)+ Fe rarr 3Fe^(++)` `(b)Hg_(2)^(++) rarr Hg^(++)+Hg` `(c ) You have been asked to calculate the enthalpy change in the following reaction: 2Al(s) Fe2O3(s) → Al2O3(s) 2Fe(s) The reaction occurs in the following stages: Formule in Hill systeem is FeH20N2O14S2. Berekent de molaire massa (molaire gewicht).

The thermite reaction is- 2Al (s) + Fe2O3 (s) → 2Fe (s) + Al2O3 (s) When 2 moles of Al react the enthalpy change is - 850 kJ therefore, when 4 moles of Al reacts, the change in enthalpy is-

Apr 18, 2019 · 2Fe(s) + 3Cu2+(aq) → 3Cu(s) + 2Fe3+ (aq) This is a redox reaction: The Fe has gone from Fe → Fe3+ It has LOST electrons - it has been oxidised . The Cu2+ has gone from Cu2+(aq) to Cu (s) It has GAINED electrons - It has been reduced. A reducing agent refers to that compound or element which loses electrons. What it basically means that it is oxidized.

2Al(s)+Fe2O3(s)−→−heatAl2O3(s)+2Fe(l) If 15.9 kg Al reacts with an excess of Fe2O3, how many kilograms of Al2O3 will be produced? Expert Answer Previous question Next question

To calculate molar mass of a chemical compound enter its formula 31 Jul 1980 Ferredoxins are iron–sulphur proteins with either one or two [4Fe-4S] clusters or one [2Fe-2S] cluster and they function as electron carriers in 2 Sep 2016 Glutathione-coordinated [2Fe-2S] complex is a non-protein-bound [2Fe-2S] cluster that is capable of reconstituting the human iron-sulfur cluster they fall into several subgroups according to the nature of their iron-sulphur cluster(s). One group, originally found in chloroplast membranes, has been termed Expression and Spectroscopic Characterization of the Hydrogenosomal [2Fe-2S] Ferredoxin from the Protozoan Trichomonas vaginalis*. Momcilo S. Vidakovic. 31 dec 2020 Vertrouwde apparaten. Een vertrouwd apparaat is een iPhone, iPad of iPod touch met iOS 9 of hoger, of een Mac met OS X El Capitan of hoger What mass of iron is formed when 725 kJ of heat are released? 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s).

In the following reaction we see that 3CO starts to gain oxygen while it is reacting with Fe2O3 and hence become 3CO2. Iron (III) Oxide + Aluminium = Aluminium Oxide + Iron. The thermite reaction is so exothermic that the reactio mixture reaches a temperature of over 2000 Cel 2Fe(s) + 3Cu+2(aq) !

Al2O3(s) 2Fe(l) → Al2O3(s) 2Fe(s) ΔH = -91kJ mol–1 Note stages 2 and 3 look the same, but the reaction is cooling from 1700oC to 25oC and hence the enthalpy change there. Calculate the overall enthalpy change for the reaction. 7. Use Hess's Law to Calculate the enthalpy of: 4FeO (s) + O 2 (g) 2Fe 2 O 3 (s) Multiply Reaction 1 by 2/3: 4FeO (s) + 2/3O 2 (g) 4/3Fe 3 O 4 (s): H = 2/3 H 1 = -2404.8 kJ: Multiply Reaction 2 by 1/3: Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2. Definitions of molecular mass, molecular weight, molar mass and molar weight Molecular mass ( molecular weight ) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). Mar 21, 2007 · 3Mg +2 Fe(NO3)3--->2Fe + Mg(NO3)2. 0 0.

我们可从题目中所给的有关方程式分析：从方程式（3）与方程式（1）可看出有我们需要的有关物质。. 但方程式（3）必须通过方程式（2）才能和方程式（1）结合在一起。. 将方程式（3）×2+方程式（2）得：. 2Fe 3 O 4 （s）+2CO（g）+3Fe 2 O 3 （s）+CO（g）=6FeO（s）+2CO 2 （g）+2Fe 3 O 4 （s）+CO 2000-1-18 2012-3-27 · 已知： Fe 2 O 3 (s)+ C(s) ＝ CO 2 (g)+2Fe(s)，Δ H ＝ +234.1kJ •• mo l-1 C(s)+O 2 (g) ＝ CO 2 (g)；Δ H ＝－ 393.5kJ •• mol-1 则 2Fe(s)+ O 2 (g) ＝ Fe 2 O 3 (s) 的Δ H 是（） A、－ 824.4 kJ •• mol-1 B、－ 627.6kJ •• mol-1 C、-744.7kJ •• mol-1 D、巴塞罗那官方合作伙伴——实况足球2020正式公测，主机团队原班人马打造，虚幻4引擎打造。实时PVP对战，极致畅爽操控体验，多元战术，智能AI，真实物理碰撞，梅西代言，原汁原味还原实况足球操作趣味。 2011-11-25 · 中关村在线(ZOL.COM.CN)提供CISCO HWIC-2FE模块接口卡最新报价，同时包括思科CISCO HWIC-2FE图片、思科CISCO HWIC-2FE参数、思科CISCO HWIC-2FE评测行情、思科CISCO HWIC-2FE论坛、思科CISCO HWIC-2FE点评和经销商价格等 1. (2018高三下·安徽开学考) 高炉炼铁中常见的反应为：Fe 2 O 3 (s)+3CO (g) 2Fe (s)+3CO 2 (g) H. （1）某实验小组在实验室模拟上述反应。. 一定温度下，在2L盛有Fe2O3粉末的恒容密闭容器中通入0.1molCO，5min时生成2.24gFe。. 5min内有CO表示的平均反应速率是________mol·L -1 min -1 ；5min时CO 2 的体积分数为________；若将此时反应体系中的混合气体通入100mL0.9mol/L … 3H 2 （g）+Fe 2 O 3 （s）=2Fe（s）+3H 2 O（g） H 2 2Fe（s）+ O 2 （g）=Fe 2 O 3 （s） H 3 2Al（s）+ O 2 （g）=Al 2 O 3 （s） H 4 2Al（s）+Fe 2 O 3 （s）=A1 2 O 3 （s）+2Fe（s） H 5 下列关于上述反应焓变的判断正确的是（） 2020-8-25 【答案】（1）Fe 2 O 3 （s） + 3CO（s）＝2Fe（s） + 3CO 2 （g） ΔH 1 ＝—28.5kJ·mol －1 （2）CO+4OH — —2e — ＝CO 3 2 — +2H 2 O （3）②＞ ②0.4＜c≤1 ③bd （4） 2008-10-3 · Calculate the enthalpy of reaction for the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) ΔHfo(Fe2O3(s)) = -824.2 kJ/mol.

Escherichia coli [2Fe-2S]-ferredoxin (Fdx) is encoded by the isc operon along with other proteins involved in the 'house-keeping' mechanism of iron-sulfur cluster biogenesis. Although it has been proposed that Fdx supplies electrons to reduce sulfane sulfur (S(0)) produced by the cysteine desulfuras … John S. Rieske and co-workers first discovered and isolated the proteins in 1964. It is a unique [2Fe-2S] cluster in that one of the two Fe atoms is coordinated by two histidine residues rather than two cysteine residues. Ferredoxins are iron-sulphur proteins with either one or two [4Fe-4S] clusters or one [2Fe-2S] cluster and they function as electron carriers in diverse metabolic systems. Extensive comparative studies on the primary structures of ferredoxins with low oxidation-reduction potentials from a wide variety of organisms have provided information on the structure-function and evolutionary Jan 01, 2018 · , 32,980 is the ellipticity to absorbance conversion factor, l is the cuvette path length in cm, and [Fe–S] is the molar concentration of the [2Fe–2S] cluster in the sample: (1) Δ ɛ = θ obs × 10 6 32, 980 × l × F e – S 2.

①×3- (②×3+③×2) 6. 得到反应CO+FeO═Fe+CO 2 ，. 所以其反应热 H=. (-24.8kJ/mol)×3- (-15.73kJ/mol)×3- (+640.4kJ/mol)×2. Please tell me what I did wrong on this problem: Given the equation Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g), Calculate the number of grams of CO that can react with 0.370kg of Fe2O3 Here's what I did: .370kg x 1000 = 370g of Fe2O3 . Chemistry due soon 由 (3)Fe3O4(s)+CO(g)=3FeO(s)+CO2(g) H3=-36.5kJ/mol 可得：3FeO(s)+CO2(g)=Fe3O4(s)+CO(g) H4=+36.5kJ/mol 由（2）Fe2O3（s）+1/3CO(g)=2/3Fe3O4(s)+1/3CO2(g) H2=-15.73kJ/mol 可得：2/3Fe3O4(s)+1/3CO2(g)=Fe2O3（s）+1/3CO(g) H5=+15 2010-12-31 · Given the unbalanced equation: Fe_2 O_3 + CO = Fe + CO_2 A 24.0 gram sample of iron(III) oxide is mixed with a 8.40 gram sample of carbon monoxide and allowed to react. What is the theoretical number of iron metal which can be obtained from the balanced equation?

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A reducing agent refers to that compound or element which loses electrons. What it basically means that it is oxidized. In the following reaction we see that 3CO starts to gain oxygen while it is reacting with Fe2O3 and hence become 3CO2.