Posted by **Sarah** on Monday, November 8, 2010 at 8:48pm.

The karat is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. An alloy that is one karat gold contains a weight of pure gold that is one part in twenty-four. What is the volume of gold in a 20.0-karat gold necklace whose weight is 1.50 N?

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