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Ch.12 - Solids and Solid-State Materials

Chapter 12, Problem 126

Describe the reactions that occur when an Si1OH24 sol becomes a gel. What is the formula of the ceramic obtained when the gel is dried and sintered?

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Hello everyone today. We have the following problem. Right. The reaction equation when 10 hydroxide solution is converted to a gel after the gel is heated and dried, provide the formula of the ceramic formed. So first we have to consider when 10 hydroxide solution is converted to a gel. So 10 hydroxide is written out With three hydroxide to the left of it and then one hydroxide to the right of 10. And so this is the reaction that occurs as such here. So we're gonna have to, tin hydroxide is coming together to form the following product. And of course water is going to be a byproduct and so essentially what will form our oxygen bridges. So oxygen bridges will form And sort of this three dimensional network. And the ceramic that is going to form after the tin hydroxide has been converted to a gel and then heated and dried will ultimately be what's known as tin hydroxide powder. So 10 hydroxide powder is the ceramic that will form. And so these are going to be our final answers overall, I hope this helped. And until next time