another chemistry doozy? | Yahoo Answers
Sep 09, 2006· 1. A sample of dolomitic limestone containing only CaCO3 and MgCO3 was analyzed. A. When a 0.2800 g sample of this limestone was decomposed by heating, 75.0 mL of CO2 at 750 mm Hg and 20 degrees C were evolved. How many grams of CO2 were produced? B. Write the equations for the decomposition of both carbonates described above. C.