Determine the formulae (show all calculations) represented by the following chemical analyses. All values are in weight percentages: i. SiO2 = 36.76, Al2O3 = 62.74 ii. SiO2 = 38.0, Al2O3 = 21.5, FeO = 26.6, MgO = 6.3, MnO = 7.6 iii. Try to name the minerals if possible.
1a) Determine the formulae (show all calculations) represented by the following chemical
analyses. All values are in weight percentages:
i. SiO2 = 36.76, Al2O3 = 62.74
ii. SiO2 = 38.0, Al2O3 = 21.5, FeO = 26.6, MgO = 6.3, MnO = 7.6
iii. Try to name the minerals if possible.
1b) Please give a balanced reaction for
The dissolution of
i. Anorthite
ii. Ca-smectite
iii. Kaolinite
iv. Plot all 3 reactions on a log[Ca/H] vs log[H4SiO4(aq)] graph.
v. Add a progress line of stability if a small amount of anorthite is added to a large
volume of water and increasingly more solid is added compared to that volume
(assume a closed system). Label key points of interest along that line. Give all
reactions.
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