Ionic and Molecular Compounds Lab

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Title: Ionic and Molecular Compounds Lab

Problem: What are some characteristic properties of:

  • Ionic compounds?
  • Molecular compounds?
  • Acids?
  • Bases?

Which of the unknown compounds provided are:

  • Ionic compounds
  • Molecular compounds
  • Acids
  • Bases

Materials:

eye dropper

eight different known chemical compounds

eight unknown chemical compounds

spot plate

blue and red litmus paper

pH test paper strips

conductivity tester

lab apron

safety goggles

Procedure:

  1. These tests are available to you.
  1. Conductivity test
  2. Litmus test
  3. pH paper
  1. Also record qualitative data
  2. Classify compound into one of these categories:
  1. ionic
  2. molecular
  3. acid
  4. base

Observations:

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Analysis:

1.

2.

Conclusion: The lab has given a conclusion that ionic compounds conduct electricity, and molecular compounds do not conduct electricity. A blue litmus paper will turn red upon its contact with an acid and stay blue when it contacts base or a neutral substance. A red litmus paper will turn blue upon its contact with a base and stay red upon its contact with an acid or a neutral substance. Unknown compounds 2 and 10 may be molecular compounds because they were the only two unknowns that did not conduct electricity. Unknown 2 could also ...

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