What is the mass of gold in a 2.5 g ring made of 18 carat gold?
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2
Answer:
your answer is 2.5 hram of gold
Answered by
2
Answer:
The mass of gold is 1.875 g.
Explanation:
The hallmark has verified that any amount of "18 carat gold" contains 75 percent of pure gold in it and 25 percent of other metals which are usually silver and copper.
Therefore to find out the amount of pure gold in any amount of 18 carat gold, all we have to do is multiply that amount with 75 percent. In this case the ring weighed 2.5 grams. 75 percent of 2.5 grams gives us 1.875 grams. Therefore the mass of gold inside 2.5 gram ring made of 18 carat gold is 1.875 grams.
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