. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0...
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...
C Using the heats of formation below, calculate the heat of reaction for the following reaction: CH4(g) + H2O(g) → C2H5OH(E) AH® (kJ/mol) C2H4(g) 52.26 H2O(g) -241.8 C2H5OH(E) -235.1 kJ d Using the heats of formation below, calculate the heat of reaction for the following reaction: Fe2O3(s) + 2Al(s) - A1203(s) + 2Fe(s) AH(kJ/mol) Fe2O3(s) -824.2 Al(s) 0 Al2O3(s) -1676 Fe(s) 0 KJ
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)
How much energy is evolved during the reaction of 48.7 g of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s), ΔH°rxn = -852 kJ
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...
How much heat (J) is evolved when 450 g of Fe,O3 is reacted with excess carbon monoxide using the equation below? Fe2O3(s) + 3C09) - 2 Fe(s) 3 CO2(g) AH -248 kJ/mol.
need help with all Predict if the following reactions are exothermic or endothermic a) 2 H2(g) + O2(g/> 2 H2O(g) ΔΗ -484 kJ b) 2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s)AH =-852 kJ c) 2 H2O(g) 2 H2(g) + O2(g)AH :484 kJ d) 2 NH3(g) → N2(g) + 3 H2(g)AH = 92.2 kJ e) H2O(g) H2O(l) ΔΗ--44 kJ
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...
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