Data Table Reaction B (MgO + HCI) Reaction A (Mg + HCl) Trial 2 Trial 1 Trial 1 Trial 2 2.212 2.213 2.384 2.431 Mass of Calorimeter (g) 17.233 17.152 16.842 Mass of Calorimeter + HCI Solution (g) Mass of Mg (Reaction A) or 0.0282 MgO (Reaction B) (g) Initial Temperature ("C) 16.973 0.198 0.182 0.379 21.1 21.1 21.2 21.2 32.4 31.0 30.6 30.0 Final Temperature (°C) Post-Laboratory Questions 1. Complete the following Results Table (show calculations on next page.) Reaction A (Mg + HCI) Reaction B (MgO+ HCI) Trial 1 Trial 2 Trial 1 Trial 2 Mass of Hydrochloric Acid Total Mass of Reactants Temperature Change Heat Absorbed by Solution Moles of Mg or MgO Enthalpy Change per Mole of Mg or MgO Average Enthalpy Change

Q: when 1.098 g of benzoic acid C7H6O2 (122.12 g/mol) is burned in a bomb calorimeter the temp rises…

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Q: enthalpy change i

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Q: Data Table Reaction A (Mg + HCI) Reaction B (Mgo+ HCI) Trial 1 Trial 2 Trial 1 Trial 2 2.384 2.431…

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Q: For the reaction Ca(OH)2(s) + H2SO4(e) → CaSO4(s) + 2H2O(e) AH° = -94.3 kJ/mol %3D How many kJ of…

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Q: 1. Copper(II) sulfate, CuSO, reacts with sodium hydroxide, NaOH, in a double displacement reaction.…

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Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

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Q: Thermochemical Stoichiometry 2) Below is the thermochemical equation for the burning of benzene…

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Q: Reaction A (Mg + HCI) Trial 1 Trial 2 ss of Calorimeter (g) 2.384 2.431 16.973 16.842 ss of…

A: 1.)  Mass of Hydrochloric acid is calculated as : Mass of HCl = ( mass of calorimeter + HCl solution…

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Q: Hydrogen gas reacts with oxygen to form water.…

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A: Given: CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)     ∆H= -802 kJ CH4(g) + CO2(g) → 2CO(g) + 2H2(g)…

Q: Consider these reactions: Reaction 1: H2 (9) + Cl2 (g) → 2HC1(g) AH = –184.6 kJ Reaction 2: 20F2 (g)…

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Q: Part 3: Enthalpy of Neutralization HCl(aq) NaOH(aq) a. Formula of the acid b. Formula of the base c.…

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Q: Reaction A (Mg + HCI) Reaction B (MgO + HCI) Trial 1 Trial 2 Trial 1 Trial 2 Mass of Calorimeter (g)…

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Q: 259 kg of water with a temperature of 27.4 °C is heated through complete combustion of benzoic acid.…

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.