The percentage by mass of calcium in Ca(OCI)2 is [Ca = 40.0; CI = 35.5; O = 16.0] by Sunday | May 7 | Chemistry WAEC | 0 comments A. 28.0% B. 31.6% C. 43.8% D. 44.5% Correct Answer: Option A A. 28.0% Users Also Read These:An oven dried soil sample of mass 8g had a mass of…What is the percentage by mass of oxygen in…In the electrolytic extraction of calcium from…Calculate the percentage by mass of nitrogen in…A solution contains 20g of solute in 180g of…