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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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makmim3 makmim3
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2 years ago
Acetylene gas may be produced by carefully adding water to calcium carbide, according to the equation:

CaC2(s) + 2 H2O(l) → Ca(OH)2(s) + C2H2(g)

When a 37 g sample of an impure calcium carbide was treated with excess water, 13 g of acetylene gas was produced. If the reaction is essentially 100% efficient, what was the percentage of nonreacting impurity in the carbide sample?

▸ 86%

▸ 58%

▸ 42%

▸ 35%

▸ 13.5%
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
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deathDoUsPartdeathDoUsPart
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