Learn chemistry = make money
A little real world application to make science relevant for 18-year-olds. Hey, at least I'm not teaching them how to make bombs or Meth...
A cash-strapped, yet resourceful chemistry student found 1915 g of silver nitrate. She also read that silver metal is currently worth $12.70 per troy ounce on the metals market. She decided to make a little spending cash by convert all of the silver nitrate into silver metal by reacting the aqueous silver nitrate in with iron metal, which gives aqueous iron (II) nitrate and silver metal as products.
A. Write the balanced equation for the reaction.
B. If the student has 3.00 x 102 g of iron nails to react with the silver nitrate. How many grams of silver nitrate will react with this much iron?
C. Identify the limiting reactant and explain how you know that this will be the limiting reactant.
D. How much money can the chemistry student expect to make from the silver that is produced from this reaction? (1 troy ounce is equal to approximately 31.1035 g).
E. When the student took the silver to a jeweler she was paid $408.23. What was her percent yield?

1 Comments:
A. Fe(s) + 2AgNO3(aq) ----> Fe(NO3)2(aq) + 2Ag(s)
B. 1825 g AgNO3 will be need to react with 300 g Fe
C. Iron is the limiting reagent
D. $473.64
E. 86.2%
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