Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies appear at the bottom of the mass because of high power of solubility.
<h3>What is lattice energy? </h3>
The lattice energy is defined as the energy change upon the formation of one mole of crystalline ionic compound from its same constituent ions, that are assumed to be initially in the state of gases. It is also defined as measure of the cohesive forces which bind ionic solids together.
As the lattice energy of the ionic compound increase the solubility of that particular compound decrease. Hence compound which have low lattice energy are more soluble than compound having high lattice energy. When molten rocks cools and solidified, the compound having smallest lattice energy become more soluble than crystals of compound which have large lattice energy. Therefore, crystal of compound with the smallest lattice energy start appearing at the bottom of the mass.
Thus, we concluded that due to high solubility power of compound with low lattice energy appear at the bottom of the mass.
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Answer:
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Explanation:
1) The quantity of moles of sulfur is:
2) The number of atoms of helium is:
3) The quantity of moles of carbon monoxide is:
4) The number of molecules of sulfur dioxide is:
5) The quantity of moles of sodium chloride is:
6) The number of formula units of magnesium iodide is:
7) The quantity of moles of potassium permanganate is:
8) The number of molecules of carbon tetrachloride is:
9) The quantity of moles of aluminium is:
10) The number of molecules of oxygen difluoride is:
