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.You have just purchased a chain claimed to be pure gold. The chain weighs 60g and it displaces 4.0cm3 of water when fully immersed. Is it pure gold? ( s.g of gold=19. 3)

Answer»

he chain weighs 60g and it DISPLACES 4.0cm³ of water when fully immersed.To find:If this gold is pure or not ?CALCULATION:First of all , try to remember ARCHIMEDES' PRINCIPLE : Since the chain displaces 4 cm³ of water UPON being immersed completely, we can say that the volume of the chain is 4 cm³The above statement is as PER the principle.Now, the weight of the chain is 60 grams.Let density of gold (as calculated practically) be .So, the calculated density of the chain is less than the actual density of gold ( 19.3 g/cm³).Hence, the chain is not made up of pure gold.



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