What theoretical weight of the oxide is formed when 28 grams of A is heated in excess oxygen and what is the % yield if 38 grams of the oxide is...

Sunday, June 28, 2015

What theoretical weight of the oxide is formed when 28 grams of A is heated in excess oxygen and what is the % yield if 38 grams of the oxide is...

The
reaction would be:

$\displaystyle{2}{A}+{3}{O}\to{A}_{{2}}{O}_{{3}}$

Moles of O in the oxide:

$\displaystyle=\frac{{{2.4}{g{{r}}}{a}{m}{s}}}{{{16.0}\frac{{{g{{r}}}{a}{m}{s}}}{{{m}{o}{l}{e}}}}}=$
0.15 mol es

Since the ratio is 2:3 then:

$\displaystyle{2}:{3}$
and?:0.15

$\displaystyle={0.15}\cdot\frac{{2}}{{3}}={0.1}\ldots$

href="https://en.wikipedia.org/wiki/Stoichiometry">https://en.wikipedia.org/wiki/Stoichiometry
href="https://en.wikipedia.org/wiki/Yield_(chemistry)">https://en.wikipedia.org/wiki/Yield_(chemistry)

Spooky Notes

Sunday, June 28, 2015

What theoretical weight of the oxide is formed when 28 grams of A is heated in excess oxygen and what is the % yield if 38 grams of the oxide is...

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