What is the molar conductivity of 0 · 1 M NaCl if its conductivity is 1 . 06 × 10 - 2 Ω - 1 cm - 1 ?

1 · 06 × 10 2 Ω - 1 cm 2 mol - 1

1 · 06 × 10 - 2 Ω - 1 cm 2 mol - 1

9 · 4 × 10 - 2 Ω - 1 cm 2 mol - 1

5 · 3 × 10 3 Ω - 1 cm 2 mol - 1

MEDIUM

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The values of conductivity of some materials at $298 .15 K$ in ${Sm}^{- 1}$ are $2 .1 \times 10^{3}, 1 .0 \times 10^{- 16}, 1 .2 \times 10, 3 .91, 1 .5 \times 10^{- 2}, 1 \times 10^{- 7}, 1 .0 \times 10^{3}$ . The number of conductors among the materials is _____.

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Important Questions on Electrochemistry

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The equivalent conductance of

NaCl

at concentration C and at infinite dilution are

λ_{C}

and

λ_{\infty}

, respectively. The correct relationship between

λ_{C}

and

λ_{\infty}

is given as :
(where the constant B is positive)

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Aqueous solution of which of the following compounds is the best conductor of electric current?

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

What is the molar conductivity of

0 \cdot 1 M NaCl

if its conductivity is

1.06 \times 10^{- 2} Ω^{- 1} {cm}^{- 1}

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

At a particular temperature, the ratio of molar conductance to specific conductance of

0.01 M

NaCl

solution is

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Which one of the following graphs between molar conductivity

(Λ_{m})

versus

\sqrt{C}

is correct?

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Among the following, the plot that correctly represents the conductometric titration of

0.05 M

H_{2} {SO}_{4}

with

0.1 M {NH}_{4} OH

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The pair of electrolytes that possess same value for the constant

(A)

in the Debye - Huckel - Onsagar equation,

λ_{m} = λ_{m} ° - A \sqrt{C}

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

KCl

solution of conductivity

0.14 S m^{- 1}

shows a resistance of

4.19 Ω

in a conductivity cell. If the same cell is filled with an

HCl

solution, the resistance drops to

1.03 Ω

. The conductivity of the HCl solution is ____

\times 10^{- 2} S m^{- 1}

. (Round off to the Nearest Integer).

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Consider the statements

S 1

and

S 2

S 1

: Conductivity always increases with decreases in the concentration of electrolyte.

S 2

: Molar conductivity always increases with decreases in the concentration of electrolyte.
The correct option among the following

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Which of the following electrolytic solution has the least specific conductance

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

What are the units of equivalent conductivity of a solution?

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The molar conductivity of a

0.5 mol {dm}^{- 3}

solution of

A g N O_{3}

with electrolytic conductivity of

5.76 \times 10^{- 3} S c m^{- 1}

298 K

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The molar conductivities of

NaOH, NaCl

and

{BaCl}_{2},

at infinite dilution are

2.481 \times 10^{- 2} {Sm}^{2} {mol}^{- 1} 1.265 \times 10^{- 2} {Sm}^{2} {mol}^{- 1}

and

2.800 \times 10^{- 2} {Sm}^{2} {mol}^{- 1}

respectively. The molar conductivity of

Ba {(OH)}_{2}

. at infinite dilution will be

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

Resistance of 0.2 M solution of an electrolyte is

50 Ω

. The specific conductance of the solution is

{1.4 S m}^{-1}

. The resistance of 0.5 M solution of the same electrolyte is

280 Ω

. The molar conductivity of 0.5 M solution of the electrolyte in

{S m}^{2} {mol}^{-1}

is :

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

If the resistivity of

0.1 M KCl

solution is

50 Ω cm .

What is its molar conductivity?

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

A $5.0 m mol {dm}^{- 3}$ aqueous solution of $KCl$ has a conductance of $0.55 mS$ when measured in a cell constant $1.3 {cm}^{- 1}$ . The molar conductivity of this solution is _______ ${mSm}^{2} {mol}^{- 1}$ . (Round off to the Nearest Integer)

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The molar conductivity at infinite dilution of barium chloride, sulphuric arid and hydrochloric acid are

280, 860

426 {Scm}^{2} {mol}^{- 1}

respectively. The molar conductivity at infinite dilution of barium sulphate is ___

{Scm}^{2} {mol}^{- 1}

( Round off to the Nearest Integer).

EASY

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The variation of molar conductively with concentration of an electrolyte (X) in aqueous solution is shown in the given figure.

Question Image

The electrolyte X is :

MEDIUM

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The molar conductivities of

HCl, NaCl, {CH}_{3} COOH

and

{CH}_{3} COONa

at infinite dilution follow the order

HARD

Chemistry>Physical Chemistry>Electrochemistry>Conductance in Electrolytic Solutions

The resistance of

0 .01 N

solution of an electrolyte was found to be

220 ohm

298 K

using a conductivity cell with a cell constant of

0.88 cm^{- 1}

. The value of equivalent conductance of solution is-

The values of conductivity of some materials at 298.15K in Sm−1 are 2.1×103, 1.0×10−16, 1.2×10,3.91, 1.5×10−2, 1×10−7, 1.0×103. The number of conductors among the materials is _____.

Important Questions on Electrochemistry

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The values of conductivity of some materials at $298 .15 K$ in ${Sm}^{- 1}$ are $2 .1 \times 10^{3}, 1 .0 \times 10^{- 16}, 1 .2 \times 10, 3 .91, 1 .5 \times 10^{- 2}, 1 \times 10^{- 7}, 1 .0 \times 10^{3}$ . The number of conductors among the materials is _____.