*Cement is 70% CaO by mass

*Concrete is 17% cement by mass
*Concrete masses 150lbs. per cubic feet
*There are 27 cubic feet in a cubic yard
*15 cubic yards required for house of concrete.

CaCo3(s)---CaO(s)+CO2(g)

1.) How many kg. of carbon dioxide were liberated to make your foundation?

2.)How many kg. of limestone were consumed?