The karat scale used to describe gold alloys is based on, Chemistry

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The karat scale used to describe gold alloys is based on

The karat scale used to describe gold alloys is based on mass percentages.

(a) If an alloy is formed that is 50 mol% silver and 50 mol% gold, what is the karat number of the alloy? Use Figure to estimate the color of this alloy.

(b) If an alloy is formed that is 50 mol% copper and 50 mol% gold, what is the karat number of the alloy? What is the color of this alloy?

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Chemistry: The karat scale used to describe gold alloys is based on

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