You have just purchased a chain claimed to be pure gold .the chain weighs 60g and it displaces 4.0 cm^3 of water when fully immersed.is it pure gold?(s.g of gold = 19.3)
Answers
Given : the chain weighs 60g and it displaces 4.0 cm³ of water when fully immersed
Specific gravity of gold = 19.3
To Find : Is chain of pure Gold
Solution:
the chain weighs 60g and it displaces 4.0 cm³ of water
=> Specific gravity of chain = chain weight / Volume of water displaced
=> Specific gravity of chain = 60 / 4
=> Specific gravity of chain = 15
While its given that Specific gravity of gold = 19.3
Hence Chain is not of pure Gold
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Answer:
15
Explanation:
specific gravity (sg) of gold =19.3
the weight of the chain=60g
the displacement of the chain=4.0cm³
specific gravity (sg) = weight of chain/vol. of water
=60 ÷
= 15 which makes it no pure because It doesn't match the given sg which is 19.3