Unknown Solid Identification

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Unknown Solid Identification
General Chemistry 101/102Laboratory
ManualUniversity of North Carolina at Wilmington
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Unknown Solid Identification

• Purpose

• To identify a solid substance based on its
  physical and chemical properties.

• Safety Considerations

• Exercise caution when handling the NaOH and HCl
  solutions. These are fairly concentrated
  solutions and may cause burns.
• Dispose of all liquid wastes in the waste jar in
  the hood. Place solid wastes in the solid waste
  container.

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Unknown Solid Identification

• Procedure

• Test 1 Record the color of your unknown solid
  and solution.

• Test 3 Add 10 drops of 1 M NaOH to 10 drops of
  your unknown solution. Gently warm the test tube
  to check for the odor of ammonia.

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Unknown Solid Identification

• Procedure

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Unknown Solid Identification

• Procedure

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Unknown Solid Identification

• Procedure

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Unknown Solid Identification

• Procedure