Electrical Conductivity Of Aqueous Solutions (Page 3 of 3) in pdf

Electrical Conductivity Of Aqueous Solutions Page 3

5. Place about 0.2 g of solid sodium chloride (NaCl) into a small, clean beaker and test the

conductivity. Add 5 mL distilled water to the sodium chloride; test the conductivity of the

solution. Dispose of this solution in the sink and rinse the beaker.

6. Place about 0.2 g of solid calcium carbonate (CaCO

) into a small, clean beaker and test the

conductivity. Add 5 mL distilled water to the calcium carbonate; test the conductivity of the

solution. Dispose this solution in the sink and rinse the beaker.

7. Use 5 mL of each of the following in 100-mL beaker to test the conductivities.

Be sure to rinse and dry the electrodes between tests, using your wash bottle with waste

beaker, and Kimwipes.

Dispose the solution and rinse the beaker in the sink between tests. Dispose the waste beaker

solution in non-hazardous waste in the hood.

a. acetic acid, 0.1 M HC

b. aluminum nitrate, 0.1 M Al(NO

)

c. ammonium hydroxide, 0.1 M NH

OH (aq)

d. calcium hydroxide, saturated Ca(OH)

e. citric acid, 0.1 M C

f. ethanol, CH

g. hydrochloric acid, 0.1 M HCl

h. magnesium hydroxide, saturated Mg(OH)

i. magnesium sulfate, 0.1 M MgSO

j. nitric acid, 0.1 M HNO

k. potassium iodide, 0.1 M KI

l. sodium chloride, 0.1 M NaCl

m. sodium hydroxide, 0.1 M NaOH

n. sucrose, 0.1 M C

Electrical Conductivity Of Aqueous Solutions Page 3