Problem Set 4 .pdf

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Author: Robert Bauer

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Chemistry Lesson: Steemit Edition Problem Set 4

1.) Balance the following chemical reaction: Fe2O3 (s) + Al (s)  Al2O3 (s) + Fe (s)
This reaction is the thermite reaction, it was used in the 1800’s to weld railroads together before
the advent of the modern welding techniques, it is my personal favorite chemical reaction
because of how it looks! For reference check out this video of it:

2.) Using the balanced reaction above. We reacted 0.7 mol of Fe2O3 with 1 mol of Al, and obtained
41 g of iron (Fe). What is our percent yield from the thermite reaction we performed?

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