How much energy is evolved during the reaction of 48.7 g of Al, according to the reaction below
Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s), ΔH°rxn = -852 kJ
Homework Answers
That is for 2*atomic mass Al in grams.
You want to know for 48.7 g. Simple proportion.
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How much energy is evolved during the reaction of 48.7 g of Al, according to the reaction below
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to...
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) Hºrxn = -852 kJ/mole (remember, AH°rxn is referenced to the whole chemical equation as one mole unit)
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to...
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) Hºrxn = -852 kJ/mole (remember, AH°rxn is referenced to the whole chemical equation as one mole unit)
How much energy is evolved during the formation of 197 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s)...
How much energy is evolved during the formation of 197 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) ΔH°rxn = -852 kJ A. 964 kJ B. 1.52 x 103 kJ C. 3.02 x 103 kJ D. 482 kJ E. 8.40 x 103 kJ
How much energy is evolved during the reaction of 273 g of Fe 2O 3, according...
How much energy is evolved during the reaction of 273 g of Fe 2O 3, according to the reaction below? Assume that there is excess Al. Fe 2O 3(s) + 2 Al(s) → Al 2O 3(s) + 2 Fe(s) ΔH°rxn = -852 kJ
Please help with these two questions :( 1. How much energy (in kJ) is evolved during...
Please help with these two questions :(
1. How much energy (in kJ) is evolved during the reaction of
76.9 g of Al, according to the reaction below?
Fe2O3(s) + 2 Al(s) →
Al2O3(s) + 2 Fe(s) ΔH°rxn = -852
kJ
Assume that there is excess Fe2O3.
2. A 12.43 g sample of ethanol (C2H5OH) is
burned in a bomb calorimeter with a heat capacity, C = 5.65
kJ/°C.
C2H5OH(l) + 3 O2(g) → 2
CO2(g) + 3 H2O(g) ΔH°rxn...
How much energy is evolved during the reaction of 53.4 g of Al, according to the...
How much energy is evolved during the reaction of 53.4 g of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe,Og(s) + 2 Al(s) + AlzO3(s) + 2 Fe(s) AHnx = -852 kJ 53.4 kJ O 843 kJ 430 kJ 1686 kJ 215 kJ Using the following equation for the combustion of octane, calculate the heat of reaction for 400.0 g of octane. The molar mass of octane is 114.33 g/mole 2 CH + 25 02...
How much energy is evolved during the formation of 197 g of Fe, according to the...
How much energy is evolved during the formation of 197 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) + A1203(s) + 2 Fe(s) AH®rxn - -852 kJ How do you find the correct answer to the problem question? DH(rxn of 197 g of Fe) = ratio of #mol from 197g of Fe in reaction / 2 mol of Fe in equation) x DHX of 2 mol of Fe). Amol from 197 sof is not known and...
. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0...
. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0 g of aluminium reacts with a stoichiometric amount of Fe2O3? 2 Al (s) + Fe2O3 (s) —>2 Fe (s) + Al2O3 (s) AH° = -852 kJ Determine the AHPrxn for the following reaction. {AH® (NH3) = -45.9 kJ/mol; AH°(O2) = 0; AH® (NO) = +91.3 kJ/mol; AH° (H2O) = -241.8 kJ/mol; 4 NH3 (g) + 5 O2 (g) — 4 NO (g) + 6...
42) Which statement is FALSE? A) An exothermic reaction gives heat off heat to the surroundings. B) Enthalpy is the...
42) Which statement is FALSE? A) An exothermic reaction gives heat off heat to the surroundings. B) Enthalpy is the sum of a system's internal energy and the product of pressure and volume change. C) AErxn is a measure of heat. D) AHrxn is the heat of reaction. E) Endothermic has a positive AH. 43) How much energy is required to decompose 765 g of PC13, according to the reaction below? The molar mass of PCl3 is 137.32 g/mol and...
QUESTION 1 According to the following reaction, how much energy is evolved during the reaction of...
QUESTION 1 According to the following reaction, how much energy is evolved during the reaction of 325gB2H6 and 725902? The moler mass of 2 He is 27 67 g/mol B2He(g) + 6 Cl2(g) - 2 BC13(g) + 6HCl(G) AH*rxn = 1396 KJ 238 kJ 1640 kJ 3070 kJ 1430
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) Hºrxn = -852 kJ/mole (remember, AH°rxn is referenced to the whole chemical equation as one mole unit)
5.) How much energy is evolved during the reaction of 4.00 moles of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s) Hºrxn = -852 kJ/mole (remember, AH°rxn is referenced to the whole chemical equation as one mole unit)
Please help with these two questions :(
1. How much energy (in kJ) is evolved during the reaction of
76.9 g of Al, according to the reaction below?
Fe2O3(s) + 2 Al(s) →
Al2O3(s) + 2 Fe(s) ΔH°rxn = -852
kJ
Assume that there is excess Fe2O3.
2. A 12.43 g sample of ethanol (C2H5OH) is
burned in a bomb calorimeter with a heat capacity, C = 5.65
kJ/°C.
C2H5OH(l) + 3 O2(g) → 2
CO2(g) + 3 H2O(g) ΔH°rxn...
How much energy is evolved during the reaction of 53.4 g of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe,Og(s) + 2 Al(s) + AlzO3(s) + 2 Fe(s) AHnx = -852 kJ 53.4 kJ O 843 kJ 430 kJ 1686 kJ 215 kJ Using the following equation for the combustion of octane, calculate the heat of reaction for 400.0 g of octane. The molar mass of octane is 114.33 g/mole 2 CH + 25 02...
How much energy is evolved during the formation of 197 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) + A1203(s) + 2 Fe(s) AH®rxn - -852 kJ How do you find the correct answer to the problem question? DH(rxn of 197 g of Fe) = ratio of #mol from 197g of Fe in reaction / 2 mol of Fe in equation) x DHX of 2 mol of Fe). Amol from 197 sof is not known and...
. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0 g of aluminium reacts with a stoichiometric amount of Fe2O3? 2 Al (s) + Fe2O3 (s) —>2 Fe (s) + Al2O3 (s) AH° = -852 kJ Determine the AHPrxn for the following reaction. {AH® (NH3) = -45.9 kJ/mol; AH°(O2) = 0; AH® (NO) = +91.3 kJ/mol; AH° (H2O) = -241.8 kJ/mol; 4 NH3 (g) + 5 O2 (g) — 4 NO (g) + 6...
42) Which statement is FALSE? A) An exothermic reaction gives heat off heat to the surroundings. B) Enthalpy is the sum of a system's internal energy and the product of pressure and volume change. C) AErxn is a measure of heat. D) AHrxn is the heat of reaction. E) Endothermic has a positive AH. 43) How much energy is required to decompose 765 g of PC13, according to the reaction below? The molar mass of PCl3 is 137.32 g/mol and...
QUESTION 1 According to the following reaction, how much energy is evolved during the reaction of 325gB2H6 and 725902? The moler mass of 2 He is 27 67 g/mol B2He(g) + 6 Cl2(g) - 2 BC13(g) + 6HCl(G) AH*rxn = 1396 KJ 238 kJ 1640 kJ 3070 kJ 1430
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