Convert conductivity to molar concentration by using the initial conductivity of the NaOH solution as a conversion factor. Convert each initial rate into the units: moles/L/s. For example, if the initial conductivity of the NaOH solution was 2000 μS/cm and initial rate was 5.0 μS/cm/s, you would convert the rate to moles/L/s by completing the following calculation:
Rate= 5.0 μS/cm/s x [(0.005 mol/L)/(2000 μS/cm)] =1.25 x 10-5 mol/L/s. Use these new values to calculate the rate constant, k.
| Trial | [NaOH] | [CH3COOC2H5] | Initial conductivity of NaOH solution (uS/cm) | Initial rate (uS/cm)/s) |
| 1 | 20.0 ml | 2.0 ml | 946.2 | 1.825 |
| 2 | 40.0 ml | 2.0 ml | 3.48 | |
| 3 | 20.0 ml | 4.0 ml | 1.88 |
Convert conductivity to molar concentration by using the initial conductivity of the NaOH solution as a...