A sample of white gold is: 18.0 g gold,3.0g silver,2.0 g cobalt,and 1.0 g platinum.What is the percent platinum in the sample?

Name: A sample of white gold is: 18.0 g gold,3.0g silver,2.0 g cobalt,and 1.0 g platinum.What is the percent platinum in the sample?
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Question

Quizplus · Accepted Answer

The total mass of the sample is 18.0 g + 3.0 g + 2.0 g + 1.0 g = 24.0 g. The percent platinum is calculated as (1.0 g / 24.0 g) * 100% = 4.2%.

A Sample of White Gold Is: 18