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You find a ring at a garage sale and purchase it for $2. Explain how you could use a simple balance and graduated cylinder to determine if it is made of gold or if it’s a fake.
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23 votes
23 votes
You find a ring at a garage sale and purchase it for $2. Explain how you could use a simple balance and graduated cylinder to determine if it is made of gold or if it’s a fake.

User Zach Waugh
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1 Answer

17 votes
17 votes
  • Gold has a density of 19300kg/m^3 much higher than water
  • So fIll the graduated cylinder with water

Density of water is 1000kg/m^3

  • Gold should sink down
  • If yes then it's pure gold
User Raedwulf
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