CH-127 Lab #6 PDF

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Lab Report...

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Title of the experiment Electrical Conductivity of Aqueous Solutions: Electrolytes and Nonelectrolytes

Ahmed Musawar Daemee Kim

Professor Wong Chemistry-127 J5B Date of the Experiment 03/09/2018

Objective

The purpose of this experiment is to test various aqueous and non aqueous solutions of compounds for electrons in the solutions to then determine if the solutions contains strong, weak, or non-electrolytes if the light bulb lights due to electrolytes present.

Introduction Ionic compounds dissociate into positively charged ions, cations and negatively charged ions,anions when dissolved in water. Ions become surrounded by water molecules, therefore considered aqueous (aq). Aqueous ions are able to conduct electric current. A compound with strong electrolytes can easily conduct electric current. A compound with weak electrolytes can conduct weak electric current. A compound with non-electrolytes will conduct no electric current since they have no ionization.

Conclusion Our objective was achieved as we found together in class about aqueous solutions, how it affect a compound (either molecular or Ionic) and also we determine that which solutions are strong electrolytes, weak electrolytes or non-electrolytes. In our experiment we found most of the Ionic compounds are either strong or weak electrolytes with the exception of

NACL(s ) and

NaHC O3 (s) . We also found that in our experiment almost all the molecular compounds are nonelectrolytes with the exception of

C H 3 COOH (aq) this is according to our experiment,

there might be some else nonelectrolyte molecular compounds. We also determined that if NACL is (aq) then it will be strong electrolyte, just because the addition of water, cations and anions separate in water and it conducts the electricity which makes it strong electrolyte, same with the

NaHC O3 (aq) . We also determine that strong electrolyte are compounds that

completely dissociate in water, while a weak electrolyte only partially dissociates in water. A non-electrolyte will dissolve, but not dissociate at all within the water. Strong electrolyte means bright light, while weak means dim and nonelectrolyte means no light at all....