Calculate enthalpy changes for the following: a. 0.069 g of sulfur (rhombic) burns, forming SO₂(g) (AƒH° for SO₂ (g) : Enthalpy change = kJ b. 0.18 mol of HgO(s) decomposes to Hg(l) and O₂(g) (AƒH° for HgO = -90.83 kJ/mol) Enthalpy change c. 2.30 g of NH3(g) is formed from N₂(g) and excess H₂(g) (AƒH° for NH3 = -45.90 kJ/mol) Enthalpy change = KJ d. 1.46 x 10-2 mol of carbon is oxidized to CO₂(g) (AfH for CO₂ = -393.509 kJ/mol) Enthalpy change = = KJ 296.84 kJ/mol) kJ

Calculate enthalpy changes for the following: a. 0.069 g of sulfur (rhombic) burns, forming SO₂(g) (AƒH° for SO₂ (g) : Enthalpy change = kJ b. 0.18 mol of HgO(s) decomposes to Hg(l) and O₂(g) (AƒH° for HgO = -90.83 kJ/mol) Enthalpy change c. 2.30 g of NH3(g) is formed from N₂(g) and excess H₂(g) (AƒH° for NH3 = -45.90 kJ/mol) Enthalpy change = KJ d. 1.46 x 10-2 mol of carbon is oxidized to CO₂(g) (AfH for CO₂ = -393.509 kJ/mol) Enthalpy change = = KJ 296.84 kJ/mol) kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Calculate enthalpy changes for the following: a. 0.080 g of sulfur (rhombic) burns, forming SO₂(g) (AƒH° for SO₂ (g) Enthalpy change kJ b. 0.33 mol of HgO(s) decomposes to Hg(l) and O₂(g) (AƒH° for HgO = -90.83 kJ/mol) Enthalpy change c. 2.80 g of NH3(g) is formed from N₂ (g) and excess H₂(g) (Aƒ H° for NH3 = -45.90 kJ/mol) Enthalpy change d. 1.36 × 10-2 = Enthalpy change = = mol of carbon is oxidized to CO₂(g) (AƒH° for CO₂ = -393.509 kJ/mol) = == kJ 296.84 kJ/mol)
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