Chem 117 Dra

Summary:
The purpose of this experiment is to examine the behavior of strong electrolytes, weak electrolytes, and nonelectrolytes by measuring the electrical conductivity of various solutions.Secondly, we will use the conductivity of a solution as a way to monitor the progress of a chemical reaction. Then go through a process of tritation use the equivalence point, at which equal molar amountsof the reactants have been combined, to determine the concentration of a solution. This behavior demonstrates that for a given amount of barium hydroxide, only a specific amount of sulfuric acid canreact. The excess, unreacted sulfuric acid is responsible for the increasing conductivity.

Results:

Part A:

Concentration | Solution | Conductivity |
0.1 M | NaCl | 11275 μS/cm |0.1 M | CaCl2 | 16765 μS/cm |
0.1 M | CH3COOH | 543 μS/cm |
0.1 M | HCl | 29400 μS/cm |
0.1 M | CH3OH | 25 μS/cm |
0.1 M | distilled H2O | 25 μS/cm |
0.1 M | tap H2O | 990 μS/cm |Part B:

1st Trial
Volume (mL) | Conductivity (μS/cm) |
9.6 | 20385 |
11.8 | 17652 |
13.6 | 15835 |
15.5 | 14064 |
17.5 | 12347 |
19.5 | 10670 |
21.5 | 9154 |
23.5 | 7585 |25.5 | 6161 |
27.7 | 4620 |
29.6 | 3376 |
31.6 | 2095 |
33.6 | 807 |
34.1 | 477 |
34.3 | 335 |
34.35 | 299 |
34.4 | 270 |
34.45 | 233 |
34.5 | 197 |
34.55 | 160 |
34.6 | 129 |34.7 | 104 |
34.75 | 80 |
34.8 | 44 |
34.85 | 29 |
34.9 | 38 |
34.95 | 71 |
35 | 110 |
35.05 | 154 |
35.1 | 193 |
35.15 | 237 |
35.2 | 282 |
35.25 | 326 |
35.35 | 407 |
35.4| 446 |
35.45 | 483 |
35.5 | 527 |

2nd Trial:

Volume (mL) | Conductivity (μS/cm) |
9.9 | 19847 |
11.9 | 18535 |
13.9 | 16632 |
15.9 | 14758 |
17.9 | 13024 |
19.9 | 11367 |
22| 9771 |
24 | 8264 |
26 | 6777 |
28 | 5415 |
30 | 4062 |
32 | 2796 |
34 | 1531 |
36 | 224 |
36.1 | 192 |
36.15 | 158 |
36.2 | 124 |
36.25 | 92 |
36.3 | 66 |
36.35 | 44 |...