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LoginState the law of Constant Composition. Illustrate with the two examples.
General Awareness General QA 2 years ago
Law of Constant Composition or Definite Proportions state: "A chemical compound is always found to be made up of the same elements combined together in the same fixed proportion by weight."
Examples,
(i) CO2 may prepare in the laboratory as follows:
CaCO3 \(\overset{Heat}{\rightarrow}\) CaO + CO2 ↑
(ii) C + O2 \(\overset{Heat}{\rightarrow}\) CO2 ↑
(iii) CaCO3 + 2HCl → CaCl2 + CO2 ↑ + H2O
(iv) 2NaHCO3 \(\overset{Heat}{\rightarrow}\) Na2CO3 + CO2 ↑ + H2O
In all the above examples, CO2 is made up of the same elements, i.e., carbon (C) and oxygen (O) combined together in the same fixed proportion by weight 12.30 or 3:8.
Posted on 06 Oct 2022, this text provides information on General Awareness related to General QA. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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