How much heat in kJ is produced by the oxidation of 18.6 g of Mn? 3 Mn(s) + 2 O2(g) => Mn3O4(s) ΔHo = -1388 kJ
How much heat in kJ is produced by the oxidation of 18.6 g of Mn? 3...
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) AH = -1652 kJ (a) How much heat is released when 3.54 mol iron are reacted with excess O2? Ok] (b) How much heat is released when 1.48 mol Fe2O3 is produced? CJ) (c) How much heat is released when 2.50 g iron are reacted with excess O2? DJ (d) How much heat is released when 12.6 g Fe and 1.02 g O2 are reacted? CkJ
How much heat is produced if 22.2 g of octane (C8H18) is combusted according to the following reaction? 2 C8H18 (g) + 25 O2 (g) --> 16 CO2 (g) + 18 H2O (l) ΔH = -5471 kJ/mol
The heat of reaction for the following is −126 kJ. How much heat (kJ) would be evolved to the surroundings by the reaction of 25.0 g of Na2O2 with water? 2Na2O2 (s) + 2H2O (l) → 4NaOH (s) + O2 (g)
4 Question 10 How much heat in kJ is produced by the combustion of 155 g of ethanol (CHO)? CH,O(g) + 302(8) 2002(8) + 3H2O(g): AHørxn--1366.8 kJ/mol The molar mass of ethanol is 46.07 g/mol 4.60 x 10 3.12 x105 2. 11854x105 8.82 4 pts
How much heat is evolved upon the complete oxidation of 9.41 g of aluminum at 25°C and 1 atm pressure? (AH° for Al2O3 is - 1676 kJ/mol.) 4Al(s) + 302(g) --> 2Al2O3(s) O 146 kJ O 1169 kJ O 292 kJ 0 585 kJ O 1.58 x 104 kJ
How much heat is produced by the combustion of 125 g of acetylene (CH)? CH2(g) + O2(b) — 2002(g) +H30() AH* = -1301.1 kJ/mol Select the correct answer below: O 1,62 x 10" k! O -4.81 x 10 O 3.2 x 10° O -6.25 X 10'
If 3.50 kJ was required for the following reaction, how many grams of KClO3 was produced? 2 KCl (s) + 3 O2 (g) → 2 KClO3 (s) ΔH = 84.9 kJ If there are 5.96 g of NO present, how much energy (kJ) will be produced? 2 NO (g) → 2 N2 (g) + O2 (g) ΔH = -180.0 kJ
9.Enter your answer in the provided box. S(rhombic) + O2(g) → SO2(g) ΔHo rxn= −296.06 kJ/mol S(monoclinic) + O2(g) → SO2(g) ΔHo rxn= −296.36 kJ/mol calculate the enthalpy change for the transformation S(rhombic) → S(monoclinic) (Monoclinic and rhombic are different allotropic forms of elemental sulfur.) _______kJ/mol 10. Enter your answer in the provided box Use the following data to calculate ΔHo/f for CS2(l): C(graphite) + O2(g) → CO2(g) ΔHo rxn= −393.5 kJ/mol S(rhombic) + O2(g) → SO2(g) ΔHo rxn=...
. 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...
QUESTION 23 How much heat is released by the complete oxidation of 7.50 g of CH3OH according to the following balanced thermochemical equation? 2CH3OH + 302 --> 2002 + 2H20 AH X = - 1528 kJ/mol rxn 84.9 kJ 39.2 kJ 317 kJ 4.23 kJ 179 kJ 275 kJ 57.6 kJ 841 kJ