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The 25-cent coin in circulation worth over $10,000: how to recognize it

A United States 25-cent coin is made from an alloy of 75% copper by weight and 25% nickel by weight. What are the atomic percentages of Cu and Ni that this material contains? 100 g of the alloy of 75% by weight of Cu and 25% by weight are taken as a base, having:75 g Cu25 g NiThe atomic mass of the elements is:63.55 g/mol for Cu58.69 g/mol for NiTherefore, the number of added molgrams of copper and nickel will be:(give answer in moles).

Rare And Valuable Coins I The Money Edit

Rare And Valuable Coins I The Money Edit

Rare And Valuable Coins I The Money Edit