﻿ An analysis of a pyrex glass showed 12.9% B2O3, 2.2% Al2O3, 3.8% Na2O, 0.4% K2O and remaining is SiO2. What is the ratio of Si to B atoms in the glass? : Kaysons Education

# An Analysis Of A pyrex glass Showed 12.9% B2O3, 2.2% Al2O3, 3.8% Na2O, 0.4% K2O And Remaining Is SiO2. What Is The Ratio Of Si To B Atoms In The Glass?

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## Question

### Solution

Correct option is

11 : 3

SiO2 present in 100 g glass

= 100 – (12.9 + 2.2 + 3.8 +0.4) = 80.7 g

=

= 1.345 mole of SiO2

= 1.345 mol of Si atoms

B2O3present in 100 g glass =12.9 g

=

= 0.184 mole of B2O3

=

=

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