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An oxide of silicon was found to contain 47% by mass silicon. What is the empirical formula of the oxide? (Si=28,O=16)

      

An oxide of silicon was found to contain 47% by mass silicon. What is the empirical formula of the oxide? (Si=28,O=16)

  

Answers


Solomon
ELEMENT SILICON OXYGEN
% Composition 47 100-47=53
Relative atomic mass 28 16
No.of moles. 47/28 53/16
=1.68 = 3.31
Mole ratio. 1.68/1.68 3.32 /1.68

= 1. 1.94
Simple whole number ratio. 1:2
Empirical formula is SiO2

solomonndegwa answered the question on August 13, 2018 at 18:18


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