Nov 28 2009 nbsp 0183 32percent mass of CaCO3 in problem Submitted by Anonymous not verified on Sat 11 28 2009 15 58 When a 1 00 gram sample of limestone was dissolved in acid 0 38 gram of CO2 was generated If the rock contained no carbonate other than CaCO3 what was the percent of CaCO3 by mass in limestone kingchemist }