Question #b98f4 Chemistry The Mole Concept Percent Composition 1 Answer anor277 Oct 5, 2016 Of silicon dioxide, #SiO_2#? Explanation: #%O# #=# #(2xx15.999*g*mol^-1)/(60.08*g*mol^-1)xx100%# #=# #53%#. And of course, the balance #%# is silicon. Answer link Related questions What is mole percent? Question #e2e8b Question #bc737 Question #bc73b Question #e2e8f Question #b9857 Question #b985b Question #fee41 Question #c5c01 Question #bc73f See all questions in Percent Composition Impact of this question 2516 views around the world You can reuse this answer Creative Commons License