Solutions And Colligative Properties
- Solutions and Colligative Properties - Result Question 1-1
- Solutions and Colligative Properties - Result Question 1
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- Solutions and Colligative Properties - Result Question 3-1
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- Solutions and Colligative Properties - Result Question 19-1
- Solutions and Colligative Properties - Result Question 20-1
- Solutions and Colligative Properties - Result Question 20
- Solutions and Colligative Properties - Result Question 21-1
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- Solutions and Colligative Properties - Result Question 25 — JEE PYQ Chapterwise
- Solutions and Colligative Properties - Result Question 25-2
- Solutions and Colligative Properties - Result Question 25 — JEE PYQ Chapterwise
- Solutions and Colligative Properties - Result Question 26-1
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Solutions and Colligative Properties - Result Question 19-1
19. The elevation in boiling point, when $13.44$ g of freshly prepared $\mathrm{CuCl}_2$ are added to one kilogram of water, is. [Some useful data, $K_b=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$, molecular weight of $\left.\mathrm{CuCl}_2=134.4 \mathrm{~g}\right]$.
(2005, 1M)
(a) $0.05$
(b) $0.1$
(c) $0.16$
(d) $0.21$
Show Answer
Answer:
Correct Answer: 19. (c)
Solution:
Molality $=\dfrac{13.44}{134.1}=0.1$
$i =3 $
$\Rightarrow \Delta T_b=i K_b \cdot m =3 \times 0.52 \times 0.1=0.156$
BETA
