You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Electrolytic Dissociation

A conductivit...

Question

A conductivity cell filled with $0.02 M A g N O_{3}$ gives at $25^{o} C$ a resistance of 947 ohms. If the cells constant is $2.3 c m^{- 1}$ . What is the molar conductivity of $0.02 M A g N O_{3}$ at $25^{o} C$ ?

121.43 Ω^{- 1} c m^{2} m o l^{- 1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

101.4 Ω^{- 1} c m^{2} m o l^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

111.4 Ω^{- 1} c m^{2} m o l^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $121.43 Ω^{- 1} c m^{2} m o l^{- 1}$
conductivity (k) = $\frac{1}{R} \times \frac{l}{A}$ (cell constant)
$k = \frac{1}{947} \times 2.3 = \frac{23}{9470}$
molar conductivity (dm) $= \frac{23}{9470} \times \frac{1000}{0.02}$
$(d m = \frac{k \times 1000}{m}) = [121.43 c m^{2} m o l^{- 1}]$

Suggest Corrections

Similar questions

Q. A conductivity cell filled with

0.01 M A g N O_{3}

solution gives at

25^{o} C

a resistance of

1442 Ω

. If the molar conductivity of

0.01 M A g N O_{3}

solution is

124.8 Ω^{- 1} c m^{2} m o l^{- 1}

, what is the cell constant?

Q. The measured resistance of a conductance cell containing

7.5 \times 10^{- 3} M

solution of

K C l

25^{o} C

was

1005 o h m s

. Calculate molar conductance

(o h m^{- 1} c m^{2} m o l^{- 1})

of the solution.
(Cell constant

= 1.25 c m^{- 1}

)

Q. The molar conductivity of

0.05 M B a C l_{2}

solution at

25^{o} C

223 Ω^{- 1} c m^{2} m o l^{- 1}

. What is its conductivity?

Q. A conductivity cell filled with

0.1 M K C l

gives at

25^{o} C

a resistance of

85.5

ohms. The conductivity of same cell filled with

0.005 M H C l

gives a resistance of

529

ohms. What is the molar conductivity of

H C l

solution at

25^{o} C

Q. A conductivity cell filled with

0.01 M

K C l

gives at

25^{o} C

the resistance of

604 o h m s

. The conductivity of

K C l

25^{o} C

0.00141 Ω^{- 1} {c m}^{- 1}

. The same cell filled with

0.001 M

A g {N O}_{3}

gives a resistance of

6529 o h m s

. Calculate the molar conductivity of

0.001 M

A g {N O}_{3}

solution at

25^{o} C

Join BYJU'S Learning Program

A conductivity cell filled with 0.02M AgNO3 gives at 25oC a resistance of 947 ohms. If the cells constant is 2.3cm−1. What is the molar conductivity of 0.02M AgNO3 at 25oC?

The correct option is A 121.43 Ω−1cm2mol−1conductivity (k) = 1R×lA (cell constant)k=1947×2.3=239470molar conductivity (dm) =239470×10000.02(dm=k×1000m)=[121.43cm2mol−1]

A conductivity cell filled with $0.02 M A g N O_{3}$ gives at $25^{o} C$ a resistance of 947 ohms. If the cells constant is $2.3 c m^{- 1}$ . What is the molar conductivity of $0.02 M A g N O_{3}$ at $25^{o} C$ ?