Use the following to determine the enthalpy of formation of magnesium oxide: Mg (s) + 2HCl(aq)...

 

 

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Use the following to determine the enthalpy of formation of magnesium oxide: Mg (s) + 2HCl(aq) → MgCl, (ag) + H₂(g) 1 MgO (s) + 2HCl(aq) → MgCl₂ (aq) + H₂O (1) H₂(g) + %0: (g)→ H₂O (1) Mg(s) + % O₂ (g) MgO (s) AH = (calculated in the experiment) AH=(calculated in the experiment) AH=- -285.8 kJ/mol AH = (determine using Hess's Law) Room Temperature Reactant Trial Number Mass of reactant (from data) Moles of reactant (calculate) Initial time (t) (from graph) Initial Temperature (T) (from the graph) Linear Curve fit slope (m) (from the graph) Linear Curve fit intercept (b) (from the graph) Final Temperature (T) (calculate from linear fit data) AT=Tr-T₁ quater Galerimeter grun AH Mg 0.2566g 0.01056 mol 43.50s 24.60°C 23.85°C 37.74°C Mg 2 0.2551g 0.01050 mol 32.00s 24.50°C MgO 37.45°C 3 0.5091g 0.01263 mol 36.00s 29.40°C MgO 32.88°C 0.5092g 0.01263 mol -0.006140°C/s -0.005526°C/s -0.003713°C/s -0.003682°C/s 52.50s 30.10°C 33.49°C 4 Use the following to determine the enthalpy of formation of magnesium oxide: Mg (s) + 2HCl(aq) → MgCl, (ag) + H₂(g) 1 MgO (s) + 2HCl(aq) → MgCl₂ (aq) + H₂O (1) H₂(g) + %0: (g)→ H₂O (1) Mg(s) + % O₂ (g) MgO (s) AH = (calculated in the experiment) AH=(calculated in the experiment) AH=- -285.8 kJ/mol AH = (determine using Hess's Law) Room Temperature Reactant Trial Number Mass of reactant (from data) Moles of reactant (calculate) Initial time (t) (from graph) Initial Temperature (T) (from the graph) Linear Curve fit slope (m) (from the graph) Linear Curve fit intercept (b) (from the graph) Final Temperature (T) (calculate from linear fit data) AT=Tr-T₁ quater Galerimeter grun AH Mg 0.2566g 0.01056 mol 43.50s 24.60°C 23.85°C 37.74°C Mg 2 0.2551g 0.01050 mol 32.00s 24.50°C MgO 37.45°C 3 0.5091g 0.01263 mol 36.00s 29.40°C MgO 32.88°C 0.5092g 0.01263 mol -0.006140°C/s -0.005526°C/s -0.003713°C/s -0.003682°C/s 52.50s 30.10°C 33.49°C 4

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To determine the enthalpy of formation of magnesium oxide AH of MgO well use the data provided a... View the full answer