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Concrete is prepared by roasting the mineral calcium carbonate, CaCO3, to drive off CO2 and produce calcium oxide, CaO
Posted: Fri Jul 15, 2022 5:02 pm
by answerhappygod
- Concrete Is Prepared By Roasting The Mineral Calcium Carbonate Caco3 To Drive Off Co2 And Produce Calcium Oxide Cao 1 (18.51 KiB) Viewed 34 times
Concrete is prepared by roasting the mineral calcium carbonate, CaCO3, to drive off CO2 and produce calcium oxide, CaO. The chemical equation for this reaction is: CaCO3=mCaO+CO2 The Grand Coulee Dam on the Columbia River in Washington State was built using a volume of concrete of approximately 1.2×107 m3. If concrete has a density of 2.4×103 kg/m3, and assuming concrete is 100% by volume CaO, how much CO2 was released producing the concrete used to build the dam? Hint: This problem is only tricky in that you have to pay attention to the units (remember to convert kg to g, for instance).