Lab #3 Recycling Aluminum - Recycling Aluminum by Erin...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Recycling Aluminum by Erin Samplin Lab Instructor: Xiaoxiao Li October 2, 2007
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Purpose To scale down the given procedure to produce a theoretical yield of 23 grams of alum from aluminum through gravity and vacuum filtrations. The melting point of the solid alum can then be determined. Procedure An aluminum can was cut into strips of aluminum weighing a total of 1.3 grams. 65.0 mL of 1.4 M KOH was measured using a graduated cylinder and was added to the 1.3 grams of aluminum in a 600 mL beaker. The beaker was heated on a hot plate at level 4 heat for about 30 minutes. Observations – the solution turned from a clear color to a cloudy mixture. Bubbles were visible on the surface. The solution turned a dark grey/brown color as the aluminum dissolved. Distilled water was added to the beaker to restore the 65.0 mL volume in order to account for the water lost through evaporation. Gravity filtration was used to remove any solid residue in the solution. 26.0 mL of a 9.0M H 2 SO 4 solution was obtained using a
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Lab #3 Recycling Aluminum - Recycling Aluminum by Erin...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online