1.

Rahul Dravid wants to wear 6.023xx10^(21) Ag atms in the form of a ring. His Silver Gold Copper alloy ring consists of 20% of Silver. The mass of the is 0.9 x. What is x?

Answer»


Solution :`6.023xx10^(23)` atoms `Ag-108g`
`6.023xx10^(21)` atoms `Ag-108g`
`20gAg-100g Ag-Au` ALLOY
`1.08g Ag = (1.08xx100)/(20)=5.4g`
`0.9x = 5.4 implies x=6`


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