Question

Table 1. Successive ionization energies for selected elements in kJ/mol. ps4_IE_table Calculate the energy required to form a single Mg2+ ion from a neutral magnesium atom in the gas phase. Provide your answer in aJ.

Question 1 0/6 pts Table 1. Successive ionization energies for selected elements in kJ/mol. 3rd 4th Number 2 3 9 11 12 Symbol Не Li F Na Mg Name helium lithium fluorine sodium magnesium 1st 2372.3 520.2 1681.0 495.8 737.7 2nd 5250.5 7298.1 2274.2 4562 1450.7 11815.0 6050.4 6910.3 7732.7 8407.7 9543 10542.5 Calculate the energy required to form a single Mg2+ ion from a neutral magnesium atom in the gas phase. Provide your answer in a). 3.64 a) Answer 1: 3.64

Answer 1

+ е + Qel Adding Mgocg) (1st Ionization ree Mg (g) E = 737.7 kgtone energy Mg 2 (g) Mgcg) = 1450.7 kglaul (2nd Joni zettonenergy) mg (g) Mg 20 (g) + E° = 6 + 6 = 44237.7+ 1450.7) Krmel E = 2188.4 kJ/mos 1 mol of Mg2+ formation required energy = 2188.4 k The 6.022X1023 atoms of myl gequired en engy, 3488.4 km I atom of mga required energy KJ- 363.4x10 weget - 23 kJ 6.0 22X1023

-23 I atom of Mg2@ formation required energy = 363.4 x 10 = 363.4 x 10-20 J (1kJ = 1000 J) = 363.4 x 10-2aJ (19J = 10183) = 3.634 al Hence, the energy required to form a single mg 20 ton from a neutral magnesium atom in the gas phase is 3. 634 at

Note: 1 mol = 6.022x10²³ atoms

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