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Chemistry / Why is NaOH(aq) stored in glass reagent bottle with a plastic stopper?
« on: 03/07/2007 09:51:43 »
"Why is NaOH(aq) stored in glass reagent bottle with a plastic stopper?"
This is a question from my school exam?
The given answer is that NaOH reacts with CO2 to form Na2CO3 and is a glass stopper is used, the glass stopper will get stuck tightly. By the reaction 2NaOH(aq) + CO2(g) -> Na2CO3(s) + H2O(l). []
But is this correct? Or is it the reaction between NaOH with SiO2? 2OH- + SiO2 -> SiO3- + H2O
This is a question from my school exam?
The given answer is that NaOH reacts with CO2 to form Na2CO3 and is a glass stopper is used, the glass stopper will get stuck tightly. By the reaction 2NaOH(aq) + CO2(g) -> Na2CO3(s) + H2O(l). []
But is this correct? Or is it the reaction between NaOH with SiO2? 2OH- + SiO2 -> SiO3- + H2O