एक विलयन में (2.4,g) विलेय (400,mL) में है। (300,K) पर परासरण दाब (0.492,atm) है। यदि (i=0.8), तो वास्तविक मोलर द्रव्यमान क्या होगा?
A solution contains (2.4,g) solute in (400,mL). Its osmotic pressure at (300,K) is (0.492,atm). If (i=0.8), what is the true molar mass?
Explanation opens after your attempt
B. \(240,g,mol^{-1}\)
Concept
\(C=\frac{0.492}{0.8\times0.082\times300}=0.025,M\)। / \(C=\frac{0.492}{0.8\times0.082\times300}=0.025,M\).
Why this answer is correct
(400,mL=0.4,L), इसलिए मोल \(0.025\times0.4=0.01\) हैं। / (400,mL=0.4,L), so moles \(=0.025\times0.4=0.01\).
Exam Tip
मोलर द्रव्यमान \(=\frac{2.4}{0.01}=240,g,mol^{-1}\)। / Molar mass \(=\frac{2.4}{0.01}=240,g,mol^{-1}\).
Login to save your score, XP, coins and progress.
