Artisan Water

12 years ago

Artisan Water
Artisan Water

Help! Grade 9 Science question?

I have a question that I don’t really understand for homework. I have to hand it in by tomorrow, and it’s being marked. Ok, this is the question:

King Midas wanted to have a new crown made for himself. A skilled local artisan offered to make the crown for a specific, and rather large, sum of money. Finally, after four weeks of work,a beautiful gold crown was delivered to the king. Being rather suspicious, he wanted to check to see whether pure gold had been used to make the crown. By immersing the crown in water, he found that its volume was 250 cm3. He determined that the mass of the crown was 3.75 kg. Was the crown made of pure gold or was the ming cheated? How can you prove you are correct?

Thanks for the help 🙂

PS: I know that it has something to do with calculating the density of the crown.

well, the density of gold is 19.32 g/cm3 and the formula for density = m/v (grams/cm3). so, convert 3.75 kg into grams, which should give you 3750 grams. if you divide 3750 grams by 250, it comes out to 15. so, it was not made of pure gold.

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