You are given 10.00 grams of a mixture of FeO and Fe2O3. Complete reduction of this mixture yields 7.17 grams of pure Fe. Calculate the mass of FeO and Fe2O3 in the original sample.
You are given 10.00 grams of a mixture of FeO and Fe2O3. Complete reduction of this...
A sample weighing 3.099 g is a mixture of Fe2O3 (molar mass = 159.69) and Al2O3 (molar mass = 101.96). When heat and a stream of H2 gas is applied to the sample, the Fe2O3 reacts to form metallic Fe and H2O(g). The A1203 does not react. If the sample residue (the solid species remaining after the reaction) weighs 2.498 g, what is the mass fraction of Fe2O3 in the original sample? Number g FeO g original sample
Consider the reaction: FeO (s) + Fe (s) + O2(g) → Fe2O3 (s) Given the following table of thermodynamic data at 298 K: Substance ΔHf° (kJ/mol) S° (J/K⋅mol) FeO (s) -271.9 60.75 Fe (s) 0 27.15 O2 (g) 0 205.0 Fe2O3 (s) -822.16 89.96 The value K for the reaction at 25 °C is ________. A.370 B.7.1 x 1085 C.3.8 x 10-14 D.5.9 x 104 E.8.1 x 1019
Calculate H for this reaction: FeO(s) + CO(g) Fe(s) + CO2(g) Given: Fe2O3(S) + CO(g) 2FeO(s) + CO2(g) H= +38 kJ Fe2O3(s) + 3CO(g) 2Fe(s) + 3CO2(g) H= -28 kJ
The balanced equation for the reduction of iron ore to the metal using CO is Fe2O3 (s) + 3CO (g) ----> 2Fe (s) + 3CO2 (g) What is the maximum mass of iron, in grams, that can be obtained from 937 g of iron(III) oxide? Mass = g Fe What mass of CO is required to react with 937 g of Fe2O3? Mass = gCO
Given the equation, which may or may not be balanced: Fe2O3(s) + CO(g) → Fe(s) + CO2(g) How many grams of Fe could be produced from the complete reaction of 3.196 grams of Fe2O3 with excess CO? grams Fe What is the percent yield of the reaction if only 1.571 grams of Fe are recovered after the reaction has completed? %
The reduction of iron(III) oxide (Fe203) to pure iron during the first step of steelmaking 2 Fe2O3(s) 4 Fe(s) + 3 O2(g) is driven by the high-temperature combustion of coke, a purified form of coal: Cs)+O2(8) CO2(g) alo AG of CO2 and Fe,03 are Suppose at the temperature of a blast furnace the Gibbs free energies of formation Ar 447. kJ/mol and 801. kJ/mol, respectively. Calculate the minimum mass of coke needed to produce 3000. kg of pure iron. Round...
You are given the following thermodynamic data. 2 Fe(s) + 3/2 O2(g) → Fe2O3(s) ΔH° = -823 kJ 3 Fe(s) + 2 O2(g) → Fe3O4(s) ΔH° = -1120. kJ Calculate the ΔH° for the following reaction. 3 Fe2O3(s) → 2 Fe3O4(s) + ½ O2(g)
6. Given the following balanced reaction, 4 Fe +30 2 Fe,O3, Calculate the molar mass of Fe2O3. a. Fe 55.85(a) 111.7 l0.00 (3) 48. Molar Mass Molar Mass 1S9.7 3SP b. Given 79.8 g of Fe2O3, calculate the moles of Fe O3. Given: 79.8g Fs03 Find:ma Feaos 19.89 Fes Plan 9-mal 0.4 c. Based on Question 6b, calculate the moles of O,. Gven: 74.89 Feos Find mol 02 Qie.co() 79.8g Fe03 =30 32 Based on Question 6c, calculate the mass...
plz help im struggling 6. (15 pts) You have a sample that is a mixture of Na.Co, solid with NaCl solid. You dissolve 4.000 grams of the mixture into enough water to make 50.00 mL of solution. You find that when you titrate your unknown solution, you require 42.19 mL of 1.000 M HCl for complete neutralization. What percentage (by mass) of the unknown mixture is Na CO,? Titration reaction: Na.Co. (aq) + 2 HCl(aq) → 2 NaCl(aq) + C048)...
You add 10.00 ml. of 0.100 M NaOH to 75.00 ml of pure water, and to this mixture you then add 5.00 ml. of 0.100 M HCI. What will be the pH of the resulting solution? 1.48 12.52 ooo 11.74 2.26