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14-01-2021
Chemistry

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gold is one of the group Metals called the coinage metals. how many atoms of gold are in a u.s. eagle a gold alloy bullion coin with a mass of 31.1 g Au?

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wolfyhastakenover wolfyhastakenover

27-01-2021

Answer:

9.51 x 10²² atoms Au

Explanation:(mass: 31.1g Au)

(m. mass: 196.967 g/mol Au)

(atoms: ?)

(31.1g Au x 1 mol Au x 6.022 x 10²³ atoms Au/ 196.967g Au x 1 mol Au)

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