lala168 lala168

01-12-2016
Chemistry

contestada

How much gold (in percent) is present in 18 carat gold peice of jewelry?An 18 carat piece piece of gold contains 18 parts gold in 24 parts of the alloy

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leorawr leorawr

01-12-2016

18-the part
________ = .75
24-the whole

.75 • 100 = 75%

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