Problem: Pure gold is usually too soft for jewelry, so it is often alloyed with other metals.How many gold atoms are in an 0.351-ounce, 18 K gold bracelet? (18 K gold is 75% gold by mass.)

FREE Expert Solution
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FREE Expert Solution

mass percent gold=mass goldmass bracelet×100


Avogadro’s number = 6.022 x 1023 entities

                                      entities = atoms, ions, molecules, particles, formula units


Calculate the # of atoms in 0.351-ounce 18 K gold bracelet:

84% (370 ratings)
Problem Details

Pure gold is usually too soft for jewelry, so it is often alloyed with other metals.

How many gold atoms are in an 0.351-ounce, 18 K gold bracelet? (18 K gold is 75% gold by mass.)

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