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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

The Molar Conductivity of 0.05 M Bacl2 Solution at 25° C is 223ω-1 Cm2 Mol-1 . What is Its Conductivity? - Chemistry

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प्रश्न

The molar conductivity of 0.05 M BaCl2 solution at 25° C is 223Ω-1 cm2 mol-1. What is its conductivity?

थोडक्यात उत्तर
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उत्तर

C = 0.05 M
λm = 223Ω-1  cm2 mol-1

λm = `(1000"k")/"C"`

`therefore  "k" = (λ_"m" xx "C")/1000`

`= (223 xx 0.05)/1000`

= 0.01115 S cm-1

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Electrical Conductance of Solution
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2018-2019 (March) Set 1

संबंधित प्रश्‍न

What is a cell constant? What are its units? How is it determined experimentally?


Answer the following in brief.

Explain the effect of dilution of the solution on conductivity.


Kohlrausch law is applicable for the solution _______.


In case of weak electrolyte the graph Λ vs `sqrt"c"` is _______.


Write an equation that shows the relationship between molar conductivity and degree of dissociation of weak electrolyte.


Write three important steps required to determine molar conductivity.


Molar conductance of BaCl2, H2SO4 and HCl at infinite dilution are X1, X2 and X3 respectively. Molar conductance of BaSO4 at infinite dilution is ____________.


If resistivity of 0.8 M KCI solution is 2.5 × 10-3 Ω cm. Calculate molar conductivity of solution?


For the reaction \[\ce{A -> B}\], the rate increases by a factor of 2.25 when the concentration of A is increased by 1.5. What is the order of the reaction?


The molar conductance of 0.001 M acetic acid is 50 ohm−1 cm2 mol−1. The limiting molar conductance is 250 ohm−1 cm2 mol−1. What is its degree of ionization?


The resistance of `1/10`M solution is 2.5 × 103 ohm. What is the molar conductivity of solution? (cell constant = 1.25 cm-1).


Conductivity of KCI solution is 0.0027 Ω−1 m−1 at 25°C. The resistance of the solution is 82.4 Ω. The cell constant is ____________ m−1.


In 2 hours, a certain current liberates 0.504 g hydrogen. How many grams of copper can be deposited by the same current flowing for the same time in a CuSO4 solution?

(Molar mass of Cu = 63.5 g mol−1, H2 = 2.0 g mol−1)


Which of the following graph represents the variation of `∧` with `sqrt"c"` for acetic acid solution?


The distance between electrodes of a conductivity cell is 0.98 cm and area of cross section is 1.96 cm2. What is the cell constant?


Conductivity of a conductor is ____________.


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What will be the concentration of NaCl solution, if the molar conductivity and conductivity of NaCl solution is 124.3 Ω-1 cm2 mol-1 and 1.243 × 10-4 Ω-1 cmrespectively?


If the conductivity of 0.08 M KCl solution is 2 × 10-2 Ω-1, what is the molar conductivity of the solution?


Specific conductance of 0.1 M sodium chloride solution is 1.06 × 10−2 ohm−1 cm−1. Its molar conductance in ohm−1 cm2 mol−1 is ______.


Which of the following has least conductivity in aqueous solution? 


Molar conductivities at infinite dilution of Mg2+ and Br- are 105.8 Ω-1 cm2 mol-1 and 78.2 Ω-1 cm2 mol-1 respectively. Calculate molar conductivity at zero concentration of MgBr2.


A conductivity cell filled with 0.02 M AgNO3 gives at 25°C resistance of 947 ohms. If the cell constant is 2.3 cm-1, what is the molar conductivity of 0.02 M AgNO3 at 25°C?


What is the SI unit of molar conductivity?


Write the relation between molar conductivity and molar ionic conductivities for the electrolytes:

  1. Na2SO4
  2. AlCl3

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