Question

Daily Problem (3) 40 2019 MgO can be used to treat heartburn, but can also cause metal fume fever if large amounts are inhaled as the dust (this is common in welding, not taking a pill of Mgo). Calculate the AHP of MgO using the following data: Heat of formation: Mg(s) → Mg(g) = +150 kJ/mole; AH diss O2(g) = +498 kJ/mole (O2(g) → 2 0(g)), First and second ionization energies of Mg(g) = +2,190 kJ/mole, First and second electron affinities O(g) +702 kJ/mole, Lattice energy = -3,790 kJ/mole Draw a Born-Haber cycle, complete with labeling, to aid in your calculations. Don't use the internet (it typically doesn't use the same formatting from class...so take good notes, and also don't forget that worlesheet #11 on my webpage has an example of this tool) a. Born-Haber cycle: b. (Number) Calculation(s): II. Circle one: a. this compound's formation is favorable because it is an exothermic process b. this compound's formation is favorable because it is an endothermic process c. this compound's formation is unfavorable because it is an exothermic process d. this compound's formation is unfavorable because it is an endothermic process Dr. Brosius recommends writing the correct work and answers of the previous DP on the hack of the

Answer 1

The energy evolved when one mole of the crystalline substance is formed from its constituent gaseous ions” is known as lattice energy (U) of the crystal.
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