75 Gold

How many gold atoms are in an 0.251 ounce, 18K gold bracelet? 18K gold is 75 % gold by mass.)?

Pure gold is usually too soft to use in jewelry making, so it is often alloyed with other metals.
How many gold atoms are in an 0.251 ounce, 18K gold bracelet? 18K gold is 75 % gold by mass.)
(answer in gold atoms)
I'm not sure how to work with ounces and seem to be getting the conversion wrong when switching it to grams... Please help and show your steps. Thank you!

(0.251 oz) x (28.3495 g/oz) x (0.75) / (196.96657 g Au/mol) x
(6.023 x 10^23 atoms/mol) = 1.63 x 10^22 atoms Au

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