In the video, the water level was 15 milliliters before adding the chain, and 20 milliliters after adding the chain. When I weighed the chain, its mass was 74.9 grams. I believe the chain is solid metal (not gold plated), but is probably a blend of gold and other metals. I looked up that gold has a density of 19.3 g/ml, while the other metals like silver and copper usually blended with gold have a combined density of about 9.7 g/ml. Determine what percentage of the chain is gold, by mass, to at least 1 decimal place?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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In the video, the water level was 15 milliliters before
adding the chain, and 20 milliliters after adding the
chain. When I weighed the chain, its mass was 74.9
grams. I believe the chain is solid metal (not gold
plated), but is probably a blend of gold and other
metals. I looked up that gold has a density of 19.3
g/ml, while the other metals like silver and copper
usually blended with gold have a combined density
of about 9.7 g/ml.
Determine what percentage of the chain is gold, by
mass, to at least 1 decimal place?
Transcribed Image Text:In the video, the water level was 15 milliliters before adding the chain, and 20 milliliters after adding the chain. When I weighed the chain, its mass was 74.9 grams. I believe the chain is solid metal (not gold plated), but is probably a blend of gold and other metals. I looked up that gold has a density of 19.3 g/ml, while the other metals like silver and copper usually blended with gold have a combined density of about 9.7 g/ml. Determine what percentage of the chain is gold, by mass, to at least 1 decimal place?
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