Lab Report Quotes

Abstract

• The density was found after doing everything.

Introduction

• In the lab of chemical reactivity goals were reached... Various tools were used to reach the goals and during different times through the experiment results were recorded so that when the lab was concluded trends could be recognized. Results were reached through several steps.
• When the electrons begin to come back down to lower energy states they give off protons.
• This interesting experiment was done to find out the color of different electrons.
• Before this experiment was performed, photons were considered an issue.
• We used the chemicals; with out the chemicals this lab woulbn't have been possible.

Materials and Methods

• We used several different chemicals such as ferrous sulfate (FeSO₄), cobalt chloride (CoCl₂), nickel chloride (NiCl₂), monogamous chloride (MnCl₂).
• All of these materials came handy during the process of the lab.
• Put 3-5 drops of the other chemicals into the other chemical and record the results if any.
• Ignite the flame slowly with the test tube.
• We filled the first row of a microplate with 0% ethanol and labeled it ethanol.
• Some of the chemicals were copper chloride, lead nitrate, lithium chloride, and strontium chloride. Those were some of the top chemicals. Some of the other chemicals are sodium chloride, potassium chloride and finally methanol.
• This part is most important since with out the chemical there is no lab.
• Although the chemicals are not to be put by hand because the hand could catch on fire, so instead a cotton swab and a tonsil is used.
• Materials used where flint, Bunsen burner, beaker, Q-tip, tongues and safety goggles because safety is first in Mr. Bigler's classroom.

Results and Discussion

• Four different kind of reactions occurred in this experiment: single displacement, double displacement, combustion, and no reaction.
• The reaction took place because lead and potassium react to the same things, making it impossible for them to react to each other.
• The results for Na₂SO₄ was that it increased, our results, as shown show that only after three rows did it increased, but that shows some sort of an increase, consider that our results could have possible error.
• If another chemical did in fact burn the same color, then that chemical does not burn any color while on fire.
• The results of this Lab, have proven to be correct, things that could have prevented that from accruing are incorrect use of chemicals, not thoroughly reading the procedure, and also abusing the privilege for the use of fire.
• The students followed the procedure carefully with the exception of human error, but to the knowledge of the student no mistakes were made.
• There was no chance of making a mistake in the Flame Test Lab, simply because its based on mixing non harmfull chemicals. The mistakes made during our lab were our own mistakes.
• It formed that because when the chemical and water had the same amount of drops the solution was at the top, and also the middle of all the other solutions.
• Also if your stand or clamp was not tight enough it could fall over and mess your whole experiment up.
• The energy was the main part that gave off the energy.
• There should be a percent error but you cant tell since some of the colors are different from what they are suppose to be.

Conclusions

• It was learned that Chemicals react differently with different chemicals and some chemicals do not even react with each other and when the chemicals react they are balanced.
• Although the data shows otherwise there may have been errors made, so there might not have been any pattern at all except for no pattern.
• The experiment should be tested again with closer attention to dropping the elements.
• The results of this experiment did support the hypothesis made. However, due to probable technical error in performing this experiment, the results did not support the hypothesis.
• Based on our knowledge of chromatography, it is inconceivable that our results could have been correct.
• The distortion method should also be done so that no water is lost.
• All of the substances varied in different ways some more than others, but for all the substances were different.
• In the end it was found that a chemical would change its level depending on how much of the chemical or water is in it.

Works Cited

• "Work Sighted" (section title).