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Posted: **Sun Jul 10, 2022 4:06 pm**

: A Sample Of A Mineral Was Found To Be 12 Carbon By Mass With The Remaining Mass Being A Combination Of Calcium And Oxy 1 (39.73 KiB) Viewed 19 times

A sample of a mineral was found to be 12% carbon by mass, with the remaining mass being a combination of calcium and oxygen. Given the sample has the same number of mols of carbon and calcium. What is the mass % of oxygen in the unknown sample?