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balance this equ Mg(s) + N2(g) + O2(g) → MgO(s) + Mg3N2(s) MgO(s) + Mg3N2(s) + H2O(l) → MgO(s) + Mg(OH)2 (s) + NH3(g) MgO(s) + Mg(OH)2 (s) → MgxOy(s) + H2O(g)
Question 3 Propane (C3H8) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) -- 3 CO2(g) + 4H2O(g) Arxn = -2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3H8 a. -104.7 kJ/mol ob. +1407.7 kJ/mol C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol
Part A N2(g)+3Br2(g)⇌2NBr3(g) K=[NBr3]2[N2][Br2]3 K=[N2][Br2]3[NBr3]2 K=[NBr3][N2][Br2] K=[NBr3]2[N2][Br2]3 Part B C(s)+O2(g)⇌CO2(g) K=[CO2][O2] K=[O2][CO2] K=[CO2][O2] K=[CO2][O2][C] When heated, carbon reacts with water to produce carbon monoxide and hydrogen. C(s)+H2O(g)+heat⇌CO(g)+H2(g) Part C What effect does each of the following changes have on the equilibrium? Drag the appropriate stresses to their respective bins. add H2O, Add heat, lower temperature, remove CO Categories: Equilibrium shifts to products, Equilibrium shifts to reactants, Equilibrium doesn't shift
Identify which of the following equations are balanced. Check all that apply. SF4(g)+2F2(g)→SF6(g)SF4(g)+2F2(g)→SF6(g) 6Li(s)+N2(g)→2Li3N(s)6Li(s)+N2(g)→2Li3N(s) Mg(s)+N2(g)→Mg3N2(s)Mg(s)+N2(g)→Mg3N2(s) PCl3(l)+Cl2(g)→PCl5(s)
The thermochemical equation for the combustion of propane is: C3H8 (g) + 5 O2 (g) 3 CO2 (g) + 4 H2O (l) H = -2220 kJ What is the enthalpy change when 35.0 g of propane react?
17. A student recovered 42.6 g of magnesium nitride (Mg3N2) from the reaction of 50.0 g of Mg and 50.0 g of nitrogen (N2). The balanced equation for this reaction is shown in Equation 15. Calculate the percent yield of Mg3N2 3 Mg(s) + N2(g) → Mg N2(s) (Eq. 15)
Use Hess's law to determine A.Hº for the reaction C3H4(g) + 2 H2(g) -> C3H8(8), given that Hy(8) + O2(8) — H2O(1) A Hº = -285.8 kJ mol-1 C3H4(8) + 402(g) — 3 CO2(g) + 2 H2O(1) A Hº = -1937 kJ mol-1 C3H2(g) + 5O2(g) — 3CO2(g) + 4H2O(1) A Hº = -2219.1 kJ mol-1
Use the following information to calculate the heat of formation of propane C3H8. 3 C (S-Graphite) + 4 H2 (g) —› C3H8 (g) 1. C (S-Graphite) + O2 (g) —› CO2 (g) ΔH = - 393.5 kJ 2. H2 (g) + ½ O2 (g) —› H2O (l) ΔH = - 285.8 kJ 3. C3H4 (g) + 4 O2 (g) —› 3 CO2 (g) + 2 H2O (l) ΔH = - 1937 kJ 4. C3H6 (g) + 9/2 O2 (g) —›...
You have the following info: C3H8(l) + O2(g) ---> CO2(g) + H2O(g) ∆Hrxn = -2044 kJ Given 4.73 Kg of C3H8(g) react and the gas produced from the reaction is collected in a 5.00 L container at 298 K. Molar masses: C3H8 = 44.09 g/mol, H2O = 18.02 g/mol, CO2 = 40.02 g/mol 1) What is the heat of the reaction given the conditions described (i.e. what is qrxn)? 2) Is the reaction exothermic or endothermic? 3) Is heat a...
Consider the following reaction: C3H8 + 5 O2 → 3 CO2 + 4 H2O How many grams of water vapor can be produced if you begin with 38.65 g of C3H8 and 15.48 g of O2?