एक विलेय (60%) त्रिमर बनाता है। यदि वास्तविक मोलर द्रव्यमान \(180,g,mol^{-1}\) है, तो प्रेक्षित मोलर द्रव्यमान कितना होगा?
A solute forms trimers to the extent of (60%). If its true molar mass is \(180,g,mol^{-1}\), what will be the observed molar mass?
Explanation opens after your attempt
C. \(300,g,mol^{-1}\)
Concept
त्रिमर संघटन के लिए \(i=1-\frac{2\alpha}{3}\)। / For trimer association, \(i=1-\frac{2\alpha}{3}\).
Why this answer is correct
\(\alpha=0.60\), अतः \(i=1-\frac{1.2}{3}=0.60\)। / With \(\alpha=0.60\), \(i=1-\frac{1.2}{3}=0.60\).
Exam Tip
प्रेक्षित मोलर द्रव्यमान \(=\frac{180}{0.60}=300,g,mol^{-1}\)। / Observed molar mass \(=\frac{180}{0.60}=300,g,mol^{-1}\).
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