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Question: The degree of dissociation of $Ca{{(N{{O}_{3}})}_{2}}$ in a dilute aqueous solution containing $14\ g$ of the salt per $200\ g$ of water ${{100}^{o}}C$ is 70 percent. If the vapour pressure of water at ${{100}^{o}}C\ 760\ cm$. Calculate the vapour pressure of the solution

1) $746.3\ mm$ of $Hg$

2) $757.5\ mm$ of $Hg$

3) $740.9\ mm$ of $Hg$

4) $750\ mm$ of $Hg$

Solution:

Explanation: No Explanation

Ideal and Non-ideal solution Azeotropic mixture and Raoult’s law

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