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Lab

Lab. The reaction of copper (II) nitrate and Iron is a single replacement reaction. Fe + Cu(NO 3 ) 2  Fe(NO 3 ) 2 + Cu This equation is already balanced. In this lab we will be putting an iron nail into produce solid copper.

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Lab

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  1. Lab • The reaction of copper (II) nitrate and Iron is a single replacement reaction. • Fe + Cu(NO3)2 Fe(NO3)2 + Cu • This equation is already balanced. • In this lab we will be putting an iron nail into produce solid copper. • The goal of this lab will be to try to predict the amount of copper we will produce and see if we are able to isolate and clean our sample of copper.

  2. Materials • In this lab you will need: • Powdered Iron • Copper (II) Nitrate solution • Distilled Water • Wash bottle • 100 mL Graduated Cylinder • 250 mL beaker • Funnel • Erlenmeyer Flask • Glass Stirring Rod • Tweezers • Balance • Filter paper

  3. Safety • Always wear goggles • The Copper (II) Nitrate will stain hands and clothes. Gloves are advised. A Chemical splash apron is optional.

  4. Procedure • Using your graduated cylinder measure out about 30 mL of the copper nitrate solution and add it to your 250 mL beaker (it does not need to be exactly 30 mL) • Measure out about 2 g of powdered iron (does not need to be exactly 2 g but you do need to record the exact mass! example: 1.98 g)

  5. Add the powdered iron to the beaker. • Let the reaction run for 10 minutes, stirring occasionally with the glass stirring rod. • After 10 minutes let the newly formed solid copper settle to the bottom of the beaker. • Carefully decant the liquid off. Be careful not to pour out ANY of the solid copper! • Once most of the liquid is poured out, add about 50 mL of distilled water to the beaker. This is to rinse the copper. • Decant again. • Repeat the rinsing process (using 50 mL of water each time) until the rinse water decants off clear.

  6. Once the rinse water is clear the solid copper can be filtered.

  7. Data Table • Your data table should have spots for: • Mass of Fe • Mass of filter paper • Mass of filter paper + Cu • Mass Cu

  8. Analysis Questions • Using the mass of iron, calculate the number of moles of iron used in your experiment. • Using the number of moles of iron used calculate the number of grams of copper that should be produced. Show and explain your work. • How much copper were you actually able to filter and isolate? What is your percent yield?

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