Advertisements
Advertisements
प्रश्न
Answer the following in one or two sentences.
How is van’t Hoff factor related to degree of ionization?
How is van’t Hoff factor related to degree of dissociation?
Advertisements
उत्तर
The van’t Hoff factor is related to degree of ionization as follows:
i = 1 + α (n – 1)
or
α = `(i - 1)/(n - 1)`
where, α = Degree of ionization/dissociation
i = van’t Hoff factor
n = Moles of ions obtained from ionization of 1 mole of electrolyte.
APPEARS IN
संबंधित प्रश्न
Answer the following in one or two sentences.
What is van’t Hoff factor?
Answer the following in one or two sentences.
Which of the following solution will have higher freezing point depression and why?
i. 0.1 m NaCl
ii. 0.05 m Al2(SO4)3
Derive the relationship between the degree of dissociation of an electrolyte and van’t Hoff factor.
At T (K), the molar ionic conductivities of NH; and OH− at infinite dilution are 72 and 198 S cm2 mol−1 respectively. The molar conductivity of 0.01 M NH4OH solution at the same temperature is found to be 9 S cm2 mol−1. The percentage dissociation of NH4OH at this concentration is ____________.
It a centimolal aqueous solution of K3[Fe(CN)6] has degree of dissociation 0.78. What is the value of van't Hoff factor?
Calculate van't Hoff-factor for 0.2 m aqueous solution of KCl which freezes at - 0.680°C. (Kf = 1.86 K kg mol-1).
If the van't Hoff-factor for 0.1 M Ba(NO3)2 solution is 2.74, the degree of dissociation is ______.
Osmotic pressure of a urea solution at 10°C is 500 mm Hg. Osmotic pressure of the solution become 105.3 mm Hg, when it is diluted and temperature is raised to 25°C. The extent of dilution is ____________.
0.6 g of a solute is dissolved in 0.1 L of a solvent which develops an osmotic pressure of 1.23 atm at 27°C. The molecular mass of the solute is ______.
Relationship between van't Hoff's factor (i) and degree of dissociation (α) is ______.
Which of the following salts of same concentration will have same value of van't Hoff factor as that of K4[Fe(CN)6]?
Which of the following equation is correct to determine osmotic pressure using van't Hoff equation?
Why is observed molar mass of acetic acid in benzene is greater than actual molar mass?
Which of the following equations is NOT correct for van't Hoff factor?
Solution of 'A' containing 1.73 g of it in 100 cm3 of water is found to be isotonic with a 3.42% (w/v) solution of sucrose. The molecular weight of A is ______. (At. mass C = 12, H = 1, 0 = 16)
The equation that represent general van't Hoff equation is ______.
For which among the following equimolar aqueous solutions Van't Hoff factor has the lowest value?
Calculate the van't Hoff factor assuming the complete dissociation of NaBr in its aqueous solution.
Calculate ΔTb and boiling point of 0.05 m aqueous solution of glucose. (Given: Kb = 0.52 K m−1).
The value of van't Hoff factor will be minimum for ______.
For 1 molal aqueous solution of the following compounds, which one will show the highest freezing point?
