A bracelet containing 0.158 mol of metal atoms is 78% gold. How many particles of gold atoms are in?

Question

A bracelet containing 0.158 mol of metal atoms is 78% gold. How many particles of gold atoms are in the bracelet?

Answer

A "mol of metal atoms" is not a defined concept. A mole is the molecular mass in grams. As a slang measure of atoms in an alloy, it is meaningless.

Answer

when doing my research there is about 1.23 million particles in gold

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