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Other Sciences
Chemistry
Solving Solubility Problems: Chlorite and Fluorite
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[QUOTE="hexa, post: 700509, member: 34644"] Hello, I'm currently abroad and have to learn for a chemistry exam which will take place the day after I'm back home. Unfortunately I've forgotten to take along a book and now have difficulties solving one type of problem, also as the local library doesn't have books in a language I understand and there's just one computer with very expensive internet connection here. [B]One example problem:[/B] Chlorite Mg5Al2SiO3O10(OH)8 dissolves incongruently. Write down the reaction assuming that H4SiO4^0 is part of that reaction. If ground water at 25 degrees celsius with a molarity of 10^-3.38 is in equilibrium with chlorite and the ph is 8.5, what is the concetration of H4SiO4^0 in mg/l. Assume that a=m [B]Another problem:[/B] Calculate the solubility of fluorite (CaF2) in water at 10, 20 and 30 degrees celsius and express the answer of Ca^2+ in mg/L (gamma = 1). There are more, rather similar problems in previous exams. I just chose those two as representative examples. Please can someone solve these problems for me or at least explain to me how to solve them? If I had that book with me it would not be a problem to look it up myself but at the moment I'm only guessing around. No problems yet with other topics as they are explained nicely in the book I actually took along. thanks a lot, hexa [/QUOTE]
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Solving Solubility Problems: Chlorite and Fluorite
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