Hi, I need to find the mass density and the number of atoms in a building that has a volume of 53306 cm^3. I know the building is made out of calcium carbonate, but I have no idea how to go about doing it. Do I need to assume the mass of the builing and find its mass density using D=M/V? What things can I assume? I know I need to use avogadro's number somewhere in there for the second part of the problem.(adsbygoogle = window.adsbygoogle || []).push({});

thanks in advance,

yours truely

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# Applying Chemistry to the real world

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