Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Project 2:

No description
by

Gabriela Cujba

on 25 September 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Project 2:

Questions
Gabriela Cujba
Hannah Martin
Taylor Fisher
Eli Klorczyk
Introduction
Investigating chemiluminescence
Goal: Find which combination best suited our concept
-longest lasting
-bright
-easy to contain
Test multiple combinations
-5 drops luminol in every cell
-Bleach
-Sodium Hydroxide
-DMSO
-Hydrogen Peroxide
-Hydrocholric Acid
Experimental
Procedure
Results and Data
Conclusion
DMSO was used to make light last longer
Hydrogen peroxide created brightest light
Bleach lasted longest of all
Order in which solutions are added is important
-DMSO must be added before bleach
-Bleach causes luminol to emit light
-If bleach added before DMSO, luminol would go to waste
Using 1:1:1 ratio of luminol:DMSO:bleach
-lasted longest
-one of the brightest
-easy to contain
Project 2:
Investigation of Chemiluminescence
Group #1
Luminol
Formula: C8H7N3O2
Molecule weight: 177.16 g/mol
Melting point: 300°C
Boiling point: 467°C
Density: 1.43 g/mL
Form: powder
Color: light yellow
Bleach
Formula: ClNaO
Molecule weight: 74.44 g/mol
Melting point: -30°C
Boiling point: 111°C
Density: 1.206 g/mL
Form: liquid
Color: clear
DMSO
Formula: C2H6OS
Molecule weight: 78.13 g/mol
Melting point: 16-19°C
Boiling point: 189°C
Density: 1.1 g/mL
Form: liquid
Color: clear
Sodium Hydroxide
Hydrochloric Acid
Formula: HCl
Molecule weight: 36.46 g/mol
Melting point: -30°C
Boiling point: 100°C
Density: 1.2 g/mL
Form: liquid
Color: light yellow
Hydrogen Peroxide
Formula: H2O2
Molecule weight: 34.01 g/mol
Melting point: -33°C
Boiling point: 108°C
Density: 1.11 g/mL
Form: liquid
Color: clear
Chemicals used
Formula: HNaO
Molecule weight: 40.00 g/mol
Melting point: 318°C
Boiling point: 1390°C
Density: 2.1300 g/mL
Form: pellets
Color: white
Instruments used
Test tubes
Pipetts
Cell plates
Luminol & Bleach
Luminol Bleach
5 drops 2 drops
5 drops 3 drops
5 drops 4 drops
5 drops 5 drops

With this test, the best one was with the 5 drops of each luminol and bleach.
Luminol, Bleach & H2O2
Luminol Bleach H2O2
5 drops 5 drops 2 drops
5 drops 5 drops 3 drops
5 drops 5 drops 4 drops
5 drops 5 drops 5 drops

As we added the H2O2, the first drop was always brighter as the bleach was increased, but nothing major.
Luminol, Bleach & NaOH
Luminol Bleach NaOH
5 drops 5 drops 2 drops
5 drops 5 drops 3 drops
5 drops 5 drops 4 drops
5 drops 5 drops 5 drops

Adding more drops of NaOH, the light lasted a second or so longer, but still with the same brighteness.

Luminol, Bleach & DMSO
Luminol Bleach DMSO
5 drops 5 drops 2 drops
5 drops 5 drops 3 drops
5 drops 5 drops 4 drops
5 drops 5 drops 5 drops

This was our best sample, with 5 drops of each luminol, bleach and DMSO.
The bleach helping with the length of time, and DMSO making it brighter.
Control 1
Luminol & H2O2
Luminol H2O2
5 drops 2 drops
5 drops 3 drops
5 drops 4 drops
5 drops 5 drops

No reaction took place here, so we knew hydrogen peroxide had no effect on the light.
Control 2
Luminol & NaOH
Luminol NaOH
5 drops 2 drops
5 drops 3 drops
5 drops 4 drops
5 drops 5 drops



1. Prepare the cell well
2. Gather luminol, hydrogen peroxide, bleach, sodium hydroxide, DMSO
3. Add 5 drops luminol to the column 1 wells. Add increasing drops of hydrogen peroxide. Then add 5 drops bleach into all the wells in that column.
4. Repeat step 3 following the concentrations in Table 1.
Full transcript