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anonymous
 one year ago
A gold‐colored ring is found to weigh 2.542 g at 20oC. The ring is dropped into a graduated cylinder filled with
water, and is found to displace 0.33 mL of liquid. If the density of 14 carat gold is 12.9 to 14.6 g/mL at 20oC, is
the ring made of gold? explain your answer.
Maybe I'm just misreading this question, but I don't understand how to go about this.. :/
anonymous
 one year ago
A gold‐colored ring is found to weigh 2.542 g at 20oC. The ring is dropped into a graduated cylinder filled with water, and is found to displace 0.33 mL of liquid. If the density of 14 carat gold is 12.9 to 14.6 g/mL at 20oC, is the ring made of gold? explain your answer. Maybe I'm just misreading this question, but I don't understand how to go about this.. :/

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You need to calculate the density of the goldcolored ring using the given mass and measured volume, and then compare that figure to the given density of 14 carat gold. Use the following formula: density of ring = (mass of ring) / (volume of ring) density of ring = (2.542 g) / (0.33 mL) density of ring = 7.6969696 g/mL or 7.7 g/mL rounded to two significant figures Answer: The density of 14 carat gold starts at 12.9 g/mL, and the density of the ring is way below that figure. The only conclusion is that the ring is NOT made of gold.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh wow I was totally overthinking that question as I tend to do so often! =S Thank you so much for your help!!
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