Warm-Up 4/28/15

1

• Warm-Up 4/28/15
• Please copy down these post-lab questions in the
  lab section.
• What is the final mass of your soap?
• Did you expect more or less? What errors could
  have occurred?
• How does your final product feel?
• What changes in the lab would you make if you
  could do it again?

2
4/28/15 Objective
Make soap in lab by following procedures
4/28/15 Agenda
Post-Lab Questions Lab Check
3
Stamp Check
HW 3/2/15 Warm-Up 3/3/15 3/27/15 4/7/15 4/16/15
No stamp? If you did it, still show it.
4

• Warm-Up 4/28/15
• Please copy down these post-lab questions in the
  lab section.
• What is the final mass of your soap?
• Did you expect more or less? What errors could
  have occurred?
• How does your final product feel?
• What changes in the lab would you make if you
  could do it again?

5
Soap Lab Procedure
After all the water has evaporated, allow to
cool.
10 mL coconut oil ? grams (density 0.924
g/mL) 15 mL NaOH solution (3M)
6
Soap Lab Procedure
Decant
Add 15 mL distilled water to the mixture and stir.
Add heated saturated sodium chloride solution (15
g salt/50mL water)
Repeat 2x
7
Soap Lab Procedure
8
Soap Lab Procedure
Press between filter paper to get water out.
Place into soap mold to dry.
9

• Lab Check
• Objective and Introduction
• Terms and Concepts
• Procedure
• Lab Data (pH readings)
• Post-Lab Questions