MHT CET202615 April 2026Evening ShiftChemistryElectrochemistryActual
Calculate the concentration of silver nitrate solution if molar conductivity and conductivity of silver nitrate at 25^ C are respectively 120 ohm ⁻¹ cm ^2 mol ⁻¹ and 0.0024 ohm ⁻¹ cm ⁻¹ .
Options
- A0.01 M
- B0.02 M
- C0.03 M
- D0.04 M
Correct answer
B. 0.02 M
Step-by-step solution
The relationship between molar conductivity _m , conductivity , and concentration C in molarity is given by: _m = 1000 C Rearranging the formula to solve for concentration C : C = 1000 _m Substituting the given values = 0.0024 ohm ⁻¹ cm ⁻¹ and _m = 120 ohm ⁻¹ cm ^2 mol ⁻¹ : C = 0.0024 1000 120 C = 2.4 120 C = 0.02 M Answer: 0.02 M