हिंदी

Out of 0.1 Molal Aqueous Solution of Glucose and 0.1 Molal Aqueous Solution of Kcl, Which One Will Have Higher Boiling Point and Why? - Chemistry

Advertisements
Advertisements

प्रश्न

 Out of 0.1 molal aqueous solution of glucose and 0.1 molal aqueous solution of KCl, which one will have higher boiling point and why? 

एक पंक्ति में उत्तर
टिप्पणी लिखिए
Advertisements

उत्तर

0.1 Molal aqueous solutions of KCl will have higher boiling point because it is an electrolyte solute and on addition to the solvent it will give 2 ions and thus the no.of moles increases and boiling point elevation will be more. 

`KCl → K^⊕ + Cl^-`
C6H12O6 → X (no dissociation)

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2018-2019 (March) 56/3/2

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

The vapour pressure of pure benzene is 640mm og Hg. 2.175×10-3kg of non-vloatile solute is added to 39 gram of benzene the vapour pressure of solution is 600mm of HG. Calculate molar mass of solute.

[C = 12, H = 1]


The determination of molar mass from elevation in boiling point is called as

  • cryoscopy
  • colorimetry
  • ebullioscopy
  • spectroscopy

Colligative property depends only on ........................ in a solution.


A solution of glucose in water is labelled as 10% (W/W).

Calculate:

a. Molality

b. Molarity of the solution.

[Given: Density of solution is 1.20 g mL-1 and molar mass of glucose is 180 g mol-1 ]


An organic substance (M = 169 gram mol–1) is dissolved in 2000 cm3 of water. Its osmotic pressure at 12°C was found to be 0.54 atm. If R = 0.0821 L atm K–1 mol–1, calculate the mass of the solute.


Colligative properties depend on ______.


Colligative properties are observed when:

(i) a non volatile solid is dissolved in a volatile liquid.

(ii) a non volatile liquid is dissolved in another volatile liquid.

(iii) a gas is dissolved in non volatile liquid.

(iv) a volatile liquid is dissolved in another volatile liquid.


Which of the following is a colligative property?


Elevation in boiling point for 1.5 molal solution of glucose in water is 4 K The depression in freezing point of 4.5 molal solution of glucose in water is 4 K. The ratio of molal elevation constant to molal depression constant (Kb/Kf) is ______.


The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×