Asked by Rishav | 4th Jun, 2008, 09:13: PM

Expert Answer:

It is most conveniently prepared in the lab. by the action of an acid on a carbonate. The apparatus used is shown below. The chemicals used are usually limestone or marble chips and dilute hydrochloric acid.

CALCIUM             +   HYDROCHLORIC           CALCIUM   +    WATER    +    CARBON
CARBONATE              ACID                                            CHLORIDE                                DIOXIDE

CaCO3        +        2HCl                   CaCl2    +    H2O     +    CO2

             Diagram for lab preparation of carbon dioxide

Answered by  | 18th Jun, 2008, 04:44: AM

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