मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Answer the following in one or two sentences. Write the relationship between conductivity and molar conductivity and hence unit of molar conductivity.

Advertisements
Advertisements

प्रश्न

Answer the following in one or two sentences.

Write the relationship between conductivity and molar conductivity and hence unit of molar conductivity.

टीपा लिहा
Advertisements

उत्तर

  1. The molar conductivity of the given solution is related to conductivity as:
    ∧ = `"k"/"c"`
  2. The SI units of k are S m-1 and that of c are mol m-3. Hence, the SI units of ∧ is S m2 mol-1
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Electrochemistry - Exercises [पृष्ठ ११८]

APPEARS IN

बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 5 Electrochemistry
Exercises | Q 2.02 | पृष्ठ ११८

संबंधित प्रश्‍न

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


Choose the most correct option.

Two solutions have the ratio of their concentrations 0.4 and ratio of their conductivities 0.216. The ratio of their molar conductivities will be ______.


Answer the following:

What is Kohlrausch law of independent migration of ions? How is it useful in obtaining molar conductivity at zero concentration of a weak electrolyte? Explain with an example.


Kohlrausch law is applicable for the solution _______.


SI unit of conductivity is _______.


Give SI unit of resistivity.


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


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


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 cm2 respectively?


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?


A conductivity cell having cell constant 8.76 cm−1, placed in 0.01 M solution of an electrolyte offered a resistance of 1000 ohms. What is the specific conductance of electrolytes?


The conductivity of 0.02 M solution of NaCl is 2.6 × 10−2 S cm−1. What is its molar conductivity?


The molar conductivities at infinite dilution for sodium acetate, HCI and NaCl are 91 S cm2 mol-1, 425.9 S cm2 mol-1 and 126.4 S cm2 mol-1 respectively. The molar conductivity of acetic acid at infinite dilution is ______.


What is the cell constant of `"N"/10 "KCl"` solution at 25°C, if conductivity and resistance of a solution is 0.0112 Ω−1 cm−1 and 55.0 Ω respectively?


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 ____________.


What is the value of cell constant if conductance and conductivity of a solution is same?


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?


What is the conductivity of 0.01 M NaCl solution if resistance and cell constant of NaCl solution are 375 ohms and 0.5 cm-1 respectively at 298 K?


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


A conductivity cell dipped in 0.5 M KCl gives a resistance of 250 ohms. If the conductivity of KC I solution is 6.68 × 10-3 S cm-1, what is the cell constant?


The value of [H3O+] in mol lit–1 of 0.001 M acetic acid solution (Ka = 1.8 × 10–5) is ______.


What is the SI unit of conductivity?


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.


Define the term cell constant.


The resistance of a conductivity cell with cell constant 1.14 cm−1, containing 0.001 M KCl at 298 K is 1500 Ω. The molar conductivity of 0.001 MKCl solution at 298 K in S cm2 mol−1 is ______. (Integer answer)


The molar conductivity of a 0.02 mol dm−3 solution of sodium hydroxide is 230.5 Ω−1 cm2 mol−1. What is its conductivity?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×