One common class of minerals are aluminosilicates,with a general formula of Al₂SiO₅.What is the atomic percentage composition of aluminum in an aluminosilicate? A)12.5 percent Al B)25 percent Al C)33.3 percent Al D)62.5 percent Al

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Quizplus · Accepted Answer

The general formula for aluminosilicates can be simplified to Al2SiO5. To find the atomic percentage of aluminum, we calculate the number of moles of aluminum and divide it by the total number of moles of all atoms in the formula. There are 2 moles of Al, 1 mole of Si, and 5 moles of O, totaling 8 moles of atoms. The atomic percentage of Al is (2/8) * 100% = 25%.

One Common Class of Minerals Are Aluminosilicates,with a General Formula