Ten > Carbon Dioxide Gas
A student used powder of calcium carbonate rather than marble pieces for the laboratory preparation of CO$\rm _2$ gas.
- Write a balanced chemical equation for the chemical reaction mentioned above.
- Why did he/she use powder of marble instead of marble chips?
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Arpit Sundas
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1 year ago
Solution
1.Ans:
The chemical reaction is of the laboratory preparation of \(\rm CO_{2}\) gas.
Reaction:
When calcium carbonate is treated with dilute hydrochloric acid, carbon dioxide is formed.
\(\rm CaCO_{3} \) + \(\rm 2HCl \) → \(\rm CaCl_{2} \) +\(\rm H_{2}O \) + \(\rm CO_{2}\) ↑
2.Ans:
If the surface area of two or more reactants is large, there is great chance of collision course together and the reaction rate is increased.
Hence, he/she used powder of marble instead of marble chips as the reactants will have larger surface areas and the rate of reaction would be faster.
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