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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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OldSpice OldSpice
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9 years ago
A ruby contains 52.7% aluminum, 47.1% oxygen, and traces of chromium. If the ruby contains 0.125 g of aluminum, what is the mass of the gemstone?
A) 0.0659 g
B) 0.125 g
C) 0.237 g
D) 0.265 g
E) 0.625 g
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ElectricElectric
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#1
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9 years ago Edited: A year ago, bio_man
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.silent.boss

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OldSpice Author
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#2
9 years ago
Perfect!

..Thank you so much for your support
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#3
9 years ago
My pleasure
.silent.boss
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#4
3 years ago
awesome
Anonymous
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#5
A year ago
A sapphire gemstone contains 52.7% aluminum, 47.1% oxygen, and traces of iron and titanium. If the sapphire were found to contain 0.155 g of oxygen, what is the mass of the gemstone?
wrote...
#6
Educator
A year ago
Quote from: bio_man (A year ago)
A sapphire gemstone contains 52.7% aluminum, 47.1% oxygen, and traces of iron and titanium. If the sapphire were found to contain 0.155 g of oxygen, what is the mass of the gemstone?

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)
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