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Answer to Question #153761 in General Chemistry for Morayo

Question #153761

What is the amount of gold present in 15.5g of a pure gold wedding ring(Au=197)


1
Expert's answer
2021-01-07T05:30:11-0500

Molar mass of "Au=197g\/mol"

"\\therefore 15.5gAu" contains;

"15.5g\\over 197g\/mol" "=0.079mol Au"


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