JEE Mains · Chemistry · STD 12 -1. Solution and colligative properties
If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be \(0.3\), then the observed freezing point will be \(.....\%\) higher than the expected/theoretical freezing point. (Nearest integer)
- A \(31\)
- B \(30\)
- C \(32\)
- D \(33\)
Answer & Solution
Correct Answer
(B) \(30\)
Step-by-step Solution
Detailed explanation
\(i=1+\alpha(\text { for } HA )\) \(=1.3\) \(\%\) increase \(=\frac{\left(\Delta T _{ f }\right)_{ obs }-\left(\Delta T _{ f }\right)_{ cal }}{\left(\Delta T _{ f }\right)_{ cal }} \times 100\) \(=\frac{K_f \times i \times m-K_f \times m}{K_f \times m} \times 100\)…
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