Chemistry of making glass [closed]








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> 
> To boil glass, the lime and sand mixture of potash was heated and the off gas spent $\pu{125 mL}$ of barley hydroxide solution (density $\pu{1.14 g mL-1}$). The mass of the sediment was $\pu{4.925 g}$. It is known that the ratio of gas to alkalinity is $1 : 1$.
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> 
> 1. Find the volume of absorbed gas.
> 2. Find mass of sodium hydroxide in solution.
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> 


This is a homework, I read the book a few times but didn't understand how to solve this. Can you please help me?




1. Apparently, a gas is released in the process of making glass. Can you figure out what that gas might be?
2. When let into an aqueous solution of a hydroxide (most likely barium), a precipitate is formed. This could give you some further intel on the nature of the gas.
3. If you know which gas was formed, you can come up with the nature of the precipitate.
4. From the molar mass of the precipitate and the given weight, you can calculate the number of moles.
5. You were given the volume and the density of the hydroxide solution. A part of the hydroxide has reacted to yield the precipitate. You should now be able to calculate how much is left in solution.


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