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Molar conductivity, conductivity or concentration from molar conductivity = 1000 x conductivity / C

This type of question, asked 19 times: 3 May 2023 S1, 4 May 2023 S1, 11 May 2023 S1, 11 May 2023 S2, 15 May 2023 S2, 9 May 2024 S2, 10 May 2024 S1, 10 May 2024 S2, 11 May 2024 S1, 13 May 2024 S2, 11 Apr 2026 S1, 13 Apr 2026 S1, 15 Apr 2026 S1, 15 Apr 2026 S2, 19 Apr 2026 S2, 20 Apr 2026 S1, 14 May 2026 S1, 14 May 2026 S2, 19 May 2026 S2. All 20 questions below, oldest first.

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  1. Question 1

    3 May 2023 S1

    58
    The molar conductivity of 0.02 M KCl solution is 410 Ω−1 cm2 mol−1410\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1} at 25∘C25^\circ\text{C}. Calculate its conductivity.

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  2. Question 2

    4 May 2023 S1

    95
    The conductivity of 0.005 M NaI solution at 25∘C25^\circ\text{C} is 6.07×10−4 Ω−1 cm−16.07\times10^{-4}\,\Omega^{-1}\text{ cm}^{-1}. Calculate its molar conductivity

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  3. Question 3

    11 May 2023 S1

    92
    The conductivity of 0.02 M KCl solution is 0.002500.00250 ohm−1^{-1} cm−1^{-1}. What is its molar conductivity?

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  4. Question 4

    11 May 2023 S2

    63
    What is the concentration of an electrolyte solution to have molar conductivity of 101 Ω−1 cm2 mol−1101\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1} and conductivity of 1.01×10−2 Ω−1 cm−11.01\times10^{-2}\ \Omega^{-1}\ \text{cm}^{-1} at 298 K?

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  5. Question 5

    15 May 2023 S2

    83
    The conductivity of 0.02 M solution of AgNO3\text{AgNO}_3 is 0.00216 Ω−1cm−10.00216\,\Omega^{-1}\text{cm}^{-1} at 298 K. What is its molar conductivity?

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  6. Question 6

    9 May 2024 S2

    82
    What is the conductivity of 0.050.05 M BaCl2_2 solution if its molar conductivity is 220 Ω−1220\,\Omega^{-1} cm² mol−1^{-1}?

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  7. Question 7

    10 May 2024 S1

    66
    Conductivity of solution is 1.26×10−2 Ω−1cm−11.26\times10^{-2}\,\Omega^{-1}\text{cm}^{-1}. Molar conductivity for 0.01 M solution is

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  8. Question 8

    10 May 2024 S2

    73
    Calculate the conductivity of 0.02 M electrolyte solution if its molar conductivity is 407.2 Ω−1 cm2 mol−1407.2\,\Omega^{-1}\,\text{cm}^2\,\text{mol}^{-1}

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  9. Question 9

    11 May 2024 S1

    93
    The molar conductivity of 0.02 M AgI at 298 K is 142.3 Ω⁻¹ cm² mol⁻¹. What is its conductivity?

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  10. Question 10

    13 May 2024 S2

    64
    What is the molar conductivity of 0.005 M NaI solution if it's conductivity is 6.065×10−4 Ω−1 cm−16.065\times10^{-4}\ \Omega^{-1}\ \text{cm}^{-1}

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  11. Question 11

    11 Apr 2026 S1

    23
    At 298298 K, the specific conductance (κ)(\kappa) of a 0.00200.0020 M NaCl solution is 2.50×10−4 S cm−12.50 \times 10^{-4}\ \mathrm{S\,cm^{-1}}. Calculate the molar conductivity (Λm)(\Lambda_m) of the solution in S cm2 mol−1\mathrm{S\,cm^2\,mol^{-1}}.

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  12. Question 12

    13 Apr 2026 S1

    23
    Calculate the molar conductivity of 0.2 M KCl solution at 298 K (k=0.0248 Ω−1cm−1)(k = 0.0248\ \Omega^{-1}\mathrm{cm^{-1}})

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  13. Question 13

    15 Apr 2026 S1

    26
    The molar conductivity of 0.040.04 M AB2\mathrm{AB_2} type salt solution at 300300 K is 200 Ω−1cm2mol−1200\ \Omega^{-1}\mathrm{cm^2mol^{-1}}. Find the conductivity.

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  14. Question 14

    15 Apr 2026 S2

    24
    Calculate the concentration of silver nitrate solution if molar conductivity and conductivity of silver nitrate at 25∘25^\circC are respectively 120 ohm−1 cm2 mol−1120\ \mathrm{ohm^{-1}\,cm^2\,mol^{-1}} and 0.0024 ohm−1 cm−10.0024\ \mathrm{ohm^{-1}\,cm^{-1}}.

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  15. Question 15

    19 Apr 2026 S2

    30
    What must be the molarity of BaCl2\mathrm{BaCl_2} solution to have molar conductivity 240 Ω−1cm2mol−1240\ \Omega^{-1}\mathrm{cm^2mol^{-1}} and conductivity 0.012 Ω−1cm−10.012\ \Omega^{-1}\mathrm{cm^{-1}} at 25 ∘C25\ ^\circ\mathrm{C} ?

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  16. Question 16

    20 Apr 2026 S1

    28
    What is the molar conductivity of 0.020.02 M KI solution if its conductivity is 4.37×10−4 Ω−1 cm−14.37 \times 10^{-4}\ \Omega^{-1}\ \mathrm{cm^{-1}} ?

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  17. Question 17

    14 May 2026 S1

    24
    What is molar conductivity of acetic acid in 0.020.02 M solution if its conductivity at the same concentration is 8×10−5 ohm−1cm−18 \times 10^{-5}\ \mathrm{ohm^{-1}cm^{-1}}?

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  18. Question 18

    14 May 2026 S2

    24
    Two solutions have concentration ratio 0.40.4 and conductivity ratio 0.20.2. What is the ratio of their molar conductivities?

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  19. Question 19

    14 May 2026 S2

    25
    Calculate the molar conductivity of 0.0010.001 M AgNO3\mathrm{AgNO_3} solution if the conductivity of 0.0010.001 M AgNO3\mathrm{AgNO_3} solution is 1.3×10−4 ohm−1 cm−11.3 \times 10^{-4}\ \mathrm{ohm^{-1}\,cm^{-1}}.

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  20. Question 20

    19 May 2026 S2

    25
    What is the molar conductivity of a 0.5 mol/dm30.5\ \mathrm{mol/dm^3} AgNO3\mathrm{AgNO_3} solution if electrolytic conductivity of it is 5.76×10−3 S cm−15.76 \times 10^{-3}\ \mathrm{S\ cm^{-1}} at 298298 K?

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