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In an experiment , 1.0g CaCO(3) on heati...

In an experiment , 1.0g `CaCO_(3)` on heating evolved 224 mL of `CO_(2)` at NTP. What mass of `CaO` (calcium oxide) is formed?

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The correct Answer is:
Mass of CaO=0.56g
Mass of 224 mL of `CO_(2)=(44)/(22400)xx224=0.44g`
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