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System, Surroundings, Intensive, Extensive Properties

Weight of orn...

Question

Weight of ornament in air is 50g and in water is 46g. Relative densities are as follow: - Au - 12 and Cu - 9. Find out the amlunt of gold in ornament

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Solution

Dear Student...

Some thing is wrong with the data...

If we use the data given in the question... You will get this answer... But it is wrong...

This answer is wrong... You can see that the weight of gold we get is grater than the weight of ornament...

But if we use the real relative densities...

This is the answer...

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