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OldSpice OldSpice
wrote...
Posts: 6434
7 years ago
A sapphire contains 52.7% aluminum, 47.1% oxygen, and traces of titanium. If the sapphire contains 0.155 g of oxygen, what is the mass of the gemstone?
A) 0.0730 g
B) 0.155 g
C) 0.294 g
D) 0.329 g
E) 0.775 g
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Answer accepted by topic starter
ElectricElectric
wrote...
Top Poster
Posts: 6430
7 years ago Edited: A month ago, bio_man
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D: see solution below

47.1% of oxygen=>mass of oxygen/Total mass of gem stone=0.471

0.155/M=0.471
M=0.3291gm(mass of gemstone)
.silent.boss

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OldSpice Author
wrote...
7 years ago
Perfect!

..Thank you so much for your support
wrote...
7 years ago
My pleasure
.silent.boss
wrote...
A year ago
thanks
wrote...
A year ago Edited: A year ago, Jocel Ramos
.....
wrote...
A year ago
Thanks
wrote...
A month ago
Thanks!
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