एक \(AB_2\) लवण के लिए मापा गया मोलर द्रव्यमान वास्तविक का \(\frac{5}{9}\) है। वियोजन की मात्रा कितनी है?
For an \(AB_2\) salt, the observed molar mass is \(\frac{5}{9}\) of the true molar mass. What is the degree of dissociation?
Correct answer and explanation
B. (40%)
Concept
(M*{obs\(}=\frac{5}{9}M*{\)true}), इसलिए \(i=\frac{9}{5}=1.8\)। / (M*{obs\(}=\frac{5}{9}M*{\)true\(}), so (i=\frac{9}{5}=1.8).\)
Why this answer is correct
\(AB_2\) के लिए \(i=1+2\alpha\)। / For \(AB_2\), \(i=1+2\alpha\).
Exam Tip
\(1.8=1+2\alpha\), इसलिए \(\alpha=0.4\), यानी (40%)। / \(1.8=1+2\alpha\), so \(\alpha=0.4\), or (40%).
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