Pre-test Conductivity of Electrolyte Solutions (L3)

What is the purpose of the L3 Electrolyte Solution Conductivity practicum?

• Determining the conductivity value of a type of solution

  Understanding the basics of the Wheatstone bridge

• Determining the resistance value of a solution circuit

  Understanding the principles of the Wheatstone bridge

• Understanding the basics of the maxwell bridge

  Determining the thermal conductivity value of a solution

Explain the methods used in the L3 practical!

• Measuring the resistance of the HCl electrolyte solution using a Wheatstone bridge circuit.

• Measuring the resistance of an H2SO4 electrolyte solution using a Wheatstone bridge circuit.

• Measuring the resistance of the electrolyte solution CUSO4 using a Wheatstone bridge circuit.

What is the scale reading on the measuring instrument in the image shown?

• The reading on the scale is 2.255 cm.

• The reading on the scale is 3.8 cm.

• The reading on the scale is 2.245 cm.

What is the name of the measuring instrument used in the image?

• Galvanometer

• Gaussmeter

• Gas meter

Please mention the tools and materials used in the L3 practical session!

• Measuring cylinder, NaCl solution, caliper

• Beaker, CuSO4 solution, measuring tape

• Measuring cylinder, CuSO4 solution, caliper

If an electrolyte solution of 160 ml with a concentration of 100% is to be diluted to a concentration of 80%, how much of the previous concentration of the electrolyte solution should be taken ... and how much water should be added ...

• Electrolyte solution 120 ml and water 40 ml

• Electrolyte solution 125 ml and water 35 ml

• Electrolyte solution 128 ml and water 32 ml

Please mention the name of the tool used to measure the volume of the solution and the diameter of the U-tube used in practical L3!

• Measuring cup and multimeter

• Glass and caliper

• Measuring cup and caliper

What is the equation used to calculate the conductivity of a solution?

What is the formula used to determine the length of a cylinder and the units used?

• Length of the tube = V/At with units in meters

• Length of the tube = V/Ae with units in ohms

• Length of the tube = L/Ae with units in meters

What are the steps to be taken after connecting the electrodes to the

Wheatstone bridge circuit that is already connected to the power source?

• Rotate the galvanometer until it points to zero and read the measured resistance.

• Measuring the volume of the solution with a measuring cup and then pouring it into a U-tube.

• Measuring the diameter of the electrode and placing it into the U-tube.