Calculate the percentage composition of oxygen in calcium trioxocarbonate(IV) [Ca=40, C=12, O=16] by Sunday | Sep 14 | Chemistry JAMB | 0 comments A. 16 B. 48 C. 40 D. 12 Correct Answer: Option B – 48 Users Also Read These:When ammonium trioxocarbonate (IV) solution is added…The reaction of hydrochloric acid and calcium…What is the percentage composition of carbon in…The percentage by mass of calcium in Ca(OCI)2 is [Ca…200cm³ of 0.50mol/dm³ solution of calcium hydrogen…