Tycjan Marczyk
Tycjan Marczyk voted up John McCann's answer
A mining company finds %TiO2 present in titanium ore, looking for the amount of bromine generated. 3TiO2 + 4BrF3 = 3TiF4 + 2Br2 + O2. If a 25.0 g sample of ore creates 4.85 g of Br2, what's the percent yield for TiO2 in the ore?

25.0 g TiO2 (1 mol TiO2/236.4 g)(2 mol Br2/3 mol TiO2)(159.8 g/1 mol Br2)

= 11.27 grams theoretical yield

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4.85/11.27 * 100

= 43% yield

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Tycjan Marczyk
Tycjan Marczyk voted up John Doe's answer
I have medical depression and I don't know how to get rid of it. How do I?

If you suspect that you have depression, you might want to see your doctor. In the meantime, try doing things you enjoy, if it's winter where you are, you may visit a tanning salon a few times as the light from a tanning bed can help with depression. If it's nice where you are, spend … Read more

Tycjan Marczyk
Tycjan Marczyk voted up John Doe's answer
I have medical depression and I don't know how to get rid of it. How do I?

If you suspect that you have depression, you might want to see your doctor. In the meantime, try doing things you enjoy, if it's winter where you are, you may visit a tanning salon a few times as the light from a tanning bed can help with depression. If it's nice where you are, spend … Read more