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Non-Bridging Calcium-Oxide Ions

What weight percent of CaO should a glass be for 20% of the oxygen ions to be non-bridging, if the glass contains only SiO2 and CaO? Each calcium ion yields 2 non-bridging oxygen ions.

The atomic weights of O, Si, and Ca are 16, 28, and 40, respectively.

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Category:- Chemistry
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