Isaiah, Isaac, and Mattis 8/27/2015-8/31/2015 Class:B
The Purpose of the lab was to the different chemical reactions when add fire to the chemical, like would it change color, will it get bigger or smaller. For the procedure first we had the chemical on glass thing that looks like giant contact lenses and then add 3 drops of methanol and then light the match and lastly set the chemical on fire and see what happens.
Pre-Lab Questions 1. What is making the color in a flame test? Metal ions reaction excites the electron. 2. What color of light is the lowest in energy? The lowest light color is red. 3. What color of light is the highest in energy? The highest light color is violet. 4. What color of light is the highest frequency? The highest frequency color is violet. 5. What color of light is the lowest frequency? The lowest frequency color is red. 6. In chemistry, what is a salt? Ionic compound 7. How are electrons “excited”? add energy moves up one shell. 8. What is a “ground state”? electrons at lowest possible energy. 9. In your own words, write a short explanation of how an electron absorbs energy and re-emits it as light and why different elements have different spectra. you can add energy by heat of light.
I was able to reach my goal because I was able to see the different color change in the chemicals and and in the fire. I was able to found out what the unknown chemical was and the color I saw the most was a reddish orange.
Why is it important to test the flame color of the methanol without any compounds dissolved in it
It’s important because it makes it last longer show we can see the different chances in the flame.
List the colors observed in this lab from highest energy to lowest energy.
Red is lower energy and Blue is higher energy.
List the colors observed in this lab from highest frequency to lowest frequency.
The colors that showed the most were red and blue and the colors that showed the least were green and orange.
1. In Chemistry, what is salt? It's an ionic compound that results from the neutralization reaction of an acid and a base.
How are electrons “excited”?
After absorbing energy, an electron may jump from the ground state to a higher energy excited state.
What is a “ground state”?
the lowest energy state of an atom or other particle.
In your own words, write a short explanation of how an electron absorbs energy and re-emits it as light and why different elements have different spectra.
The things I learned from this project is that all chemicals make different color flames, some are the some and some are different. Also that there are different kinds of salts, the one that you would put on food and the one the you can start a fire with.