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# Part 2: This is & measured composition of = an amphibole from the Azores islands in the Atlantic. SiOz 40.67 TiO; 5.38 AL,O,11.56 FeO 13,99 CaO 10.77 MgO 1141 M...

## Question

###### Part 2: This is & measured composition of = an amphibole from the Azores islands in the Atlantic. SiOz 40.67 TiO; 5.38 AL,O,11.56 FeO 13,99 CaO 10.77 MgO 1141 MnO 0.35 Ko 0.84 Nao 2.87 Total 97.84Write the chemical formula of this amphibole; placing all of the atoms on the correct site. (30 points)To do this: first convert this composition to molar units by dividing by the molecular weight of each oxide, then calculate the number of cations of each element present and the number of oxygen at

Part 2: This is & measured composition of = an amphibole from the Azores islands in the Atlantic. SiOz 40.67 TiO; 5.38 AL,O,11.56 FeO 13,99 CaO 10.77 MgO 1141 MnO 0.35 Ko 0.84 Nao 2.87 Total 97.84 Write the chemical formula of this amphibole; placing all of the atoms on the correct site. (30 points) To do this: first convert this composition to molar units by dividing by the molecular weight of each oxide, then calculate the number of cations of each element present and the number of oxygen atoms contributed by each cation sum up the number of oxygen atoms you have accounted for; then renormalize both so that there are 22 oxygen atoms in the formula by multiplying each oxide by the same factor; then write the formula in this format where A, B, and C are examples of the cations (there will be 9 cations in the final formula) (Si 1.48 T; o." Ald.34 Fc 0.35+ Alg D.46 MnDusu E oelina ABCO  #### Similar Solved Questions

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