flame test lab report conclusion

Compounds such as CaCO3, CaCl2, and CaSO4 can be good materials to use to make red fireworks. fIBD Chemistry Flame Test Practical This is because from our research we have discovered that when an atom is excited, its electrons jump to higher energy shells and upon their return (to ground state) the electrons emit a specific frequency of light. Another purpose was to understand how fireworks work. Light the Bunsen Burner. The metal in the compound was identified by the light orange color seen during the flame test. Why do you think the chemicals have to be heated in the flame first before the colored light is emitted? A 100 mL beaker was filled half-way with water. Another example of colorful light emissions is the sun. This experiment will benefit people who investigate fires. 1. To estimate the wavelength of light produced then calculate the frequency and energy of the light Oxygen Potassium, Background With these observations, it can be concluded that the cations are the ones responsible for the unique flame color of the compounds. Generally, the flame test observes the occurrence of metal ions in a compound. Beaker Based on the table above, compounds that have similar metal cations give-off similar flame color as explained by unique electromagnetic radiation released when excited electrons go back to their ground state. 1. Our flame test chloride KCl Conclusion: Errors: Recommendations: References: EXPERIMENT 3 Flame Tests & Electron Configuration [PDF] http://swc2.hccs.edu/pahlavan/intro_labs/Exp_5_Flame_Tests_and_Electron_Configuration.pdf name of your solid make a table to keep everything organized and write Experimental- The safety equipment was put on. For Group 1 compounds, flame tests are usually by far the easiest way of identifying which metal you have got. CuCl2 Summary Hypothesis fProcedure: Turn on the Bunsen burner Light a match and place it near the gas output Flame arises Place iron rod-pole in HCI Move it over the flame (this cleans it) Place iron rod-pole in H2O Pick up a substance with the iron rod-pole Place above flame Observe Redo steps 4 through 6 Redo steps 7 onwards (with all substances) Conclusion: This experiment can help to identify elements in space to help scientists know whether a planet has oxygen or not. Brown, T. L., Lemay, H. E., & Bursten, B. E. (1994). One of the samples was put on thespatula and the formula of the salt solution was recorded into Table 1. If one can tell if a planet has oxygen on it based on its bright line spectra, research could be done to tell if people can live on the planet or not. In the experiment the different chemicals produced different colored flames ,and the results were read by a spectrometer. Flame test involves placing a sample of an element or compound in a non-luminous flame and observing the resulting color of the flame. The metallic ion produces a characteristic color in a flame test, regardless of the compound used . Calcium, ions. Based on the results of the flame test, it was evident that the main ions responsible for the color intensity of the flames are the metal cation. threshold temperatures and fire and flash test point report. Cite this page. You must cite our web site as your source. Flame Test Lab Report Our. Instrumental methods of analysis are faster, and more accurate and more sensitive than simple chemical tests.. 4- 4 Unknown test solid as directed by instructor (potassium , sodium , calcium , barium / chloride ) 5- A beaker. Materials: 50 mL beaker Sodium Chloride Different wavelengths of the different chemicals were graphed and put in to tables so they could be analyzed. Record the results of your calculations in the table below. The potassium sulfate had a yellow/orange and light purple color, but it was kind of hard to see, but when I looked through the cobalt glass I could see the higher energy light of violet much more clearly. This level of energy is called a quantum. Chemistry CP Enter the email address you signed up with and we'll email you a reset link. when performing this experiment. Table 2 shows that you can identify a metal in a compound by using a flame test. Based on the table above, compounds that have similar metal cations give-off similar Lab Report - Flame Test. The flame test indicates that energy is released in the form of light as electrons return to their ground state from a more excited state. The metal in the compound was identified by the light orange color seen during the flame test. It was made sure that a separate cotton swab was used in every compound tested to get an accurate flame color for each compound. Flame Test Lab Report complianceportal.american.edu 2022-11-26 Lab report conclusion Rating: 6,4/10 1380 reviews A lab report conclusion is a key part of any scientific experiment as it summarizes the results and findings of the experiment. The results were verified by three trials. You can use the different compounds to make different colors and this would create a firework show. stream 3. electrons become excited and will jump to a higher energy level. Table 1: iron produces a black color. The test involve putting sample element and see what color appears. Lab Report by Leslee Lawrence 5 hours ago Flame Test kit Purpose Conclusion The purpose of this lab is to observe the emission spectrum's of different metals. In Bohrs, Premium A qualitative chemicals analysis of the river was conducted to assess its water quality status. General and uivtical Yv'illiams, S TAY HA PHN TCH - Deans Analytical Chemistry Handbook 2nd Edition by Pradyot Patnaik, Reactions and Reason: An Introductory Chemistry Module. order for these electrons to go back to their ground state, they need to release energy Objective In flame tests, salts that are dissolved in water are evaporated using a hot flame. Full Document. Sodium chloride Chemical compound, I. Metal This is once again demonstrated in the results from this practical. You can download the paper by clicking the button above. Since the energy required (being released) by the electrons to go back to their most stable state is specific and unique for every atom, one can easily determine what kind of metal is present in the compound under study. When the atoms fell back to ground level they released photons in the form of colored flame. The bead of the test flame should be in 4mm and stirring should be stopped while applying the test flame. served as a negative control. Safety & Precautions: The color of the flame is dependent upon how much energy is being released. When subjected to flame test, copper(II) gluconate CuC6H11O7 will produce a green flame because of the copper anion present. Explainer Robert Bunsen and Gustav Kirchhoff. The spectrometer may have been dysfunctional , or there may have been problems with it. |Lithium Chloride, Premium Our errors occured with our technique in using the spectroscope. d. So, is the cation responsible for flame color? The central science (pp. The compounds KC4H5O6 and KCl would be good for making purple fireworks. Based on your results and observations would this method be practical to determine the metals in a mixture? as a negative control for this experiment. The flame test could possibly read invalid if there is still a trace of the previous substance still in the burner or if there is a trace of the substance in the current substance that is being tested. III. Flame Test Lab Write Up Free Essays PhDessay com. This lab is made for the learner to determine the identity of two unknown elements. Spectroscopy is the study of the electromagnetic radiation emitted or absorbed by atoms and molecules. This test showed that there is a direct coloration between the heat energy being expelled and the movement of electrons from one energy level to the next. endobj Every element emits a different flame color or colors. However, it should be able to capture all the elements discussed above in their entirety. Lab Experiment #3- Flame Tests - Jack M. Barrack Hebrew Academy . Since water and hydrochloric acid were used as collecting medium of the chemical compounds under study, it was ensured that these two did not give off flames that have a different color with the flame produced by the gas burner. For this lab we got a whole bunch of compounds and burned them to observe the flame and frequency based off the color of the flame. There were nine ionic compounds which were subjected to direct flame using a gas Why do different metals have different characteristic flame test colours? Experiment: In order to perform this project, we must use Iodine on any sample can detect starch by changing the color of the tested area to dark blue. After compaction is not what is a bitumen were observed when an instantaneous flash point temperature at a test for each bitumen assists in. 4.4 (7 reviews) Purpose. The purpose of this lab was to allow us to observe compounds and how they react to an energy in different ways. Light List the colors observed in this lab from shortest wavelength to longest wavelength. We then used the colors we recorded to find the two unknown samples given to us. To on this website work, with flame passed in the lead . Flame Test Lab Report Conclusion In the flame test lab I learned about how different metal ions produce different color flames when they are put under a burner flame. **Wash hands thoroughly before leaving the lab. The spatula with the salt solution was put over the flame. Metals are good conductors another element in a ratio of small whole numbers. Acknowledgments: The author of this paper thanks Union Springs High School for use of their facilities to conduct this experiment with. All alkaline earth metals except beryllium How would you characterize the flame test with respect to its sensitivity? If the color of the flame does not change, then the test is inconclusive, and no cation is determined from the test, only the nonexistence of the conclusive cations is determined. 162 Words. metal ions in liquid and solid compounds by observing the color of the flames they give of, subjected to open flame using a gas burner, Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. Solubility is a quantitative term defined, Premium The student could match their observances to the specific color a flame would make when it comes into contact with a substance. Definitions: Quantum Jump: Abrupt change from one energy level to another, especially such a change in the orbit of an electron with the loss or gain of a quantum of energy. Yes, because different tests have different colors. View the color change in the flame and note it in the data table. CHM131 lab report First we had to test methanol alone. Look carefully on the thermometer reading when the temperature reaches at 17 C below the expected flashpoint the test flame should be applied. Alkaline earth metal Ammonia Springdale School, Inc. to help determine its contents. The purpose of this lab was to see what colors are characteristic of particular metallic ions in a flame test and use their characteristic color to identify other elements. The central science (pp. It will also be conducted with everyone in the lab using safety goggles and everyone wearing closed toed shoes. Purpose: To observe the colors produced when compounds are introduced into a flame and the electrons become excited. 2. Do not cross contaminate compounds. Materials: Our flame test was in lab class where the main aim was to tested different solid metals in the flame in order to observe the wide variety of colors those chemicals also sometimes compounds (by mixing them) they produced the second one was to identify unknown metals based on their flame color, Premium When atoms or ions in ground state are heated to a higher temperature some electrons absorb enough energy to move them to higher energy levels. Colorful light emissions are applicable to everyday life. A gas burner, which was used to catalyse the excitation of electrons, was set-up. Hydrogen, Livana in China) until the 1830s, all fireworks were either white or orange. Spectroscopy, found in a compound. Ideally, a lab report begins with an introduction and ends with a conclusion. Teacher's Guide, Government of India Chemical and Instrumental Analysis of Ores, Minerals, Ore Dressing Products and Environmental Samples Controller General Indian Bureau of Mines NAGPUR Revised Edition, [Pradyot Patnaik] Dean s Analytical Chemistry Hand(Bookos.org), Salters Advanced Chemistry Module 1 Activities Booklet, Certificate Chemistry Fourth Edition by Arthur Atkinson, Group 2 Reactions with Oxygen and Chlorine Reactions with Chlorine Group 2 Trends, Cambridge igcse chemistry by bryan earl and doug wilford, The CLEAPSS Recipe Book Introduction to this Edition. When I went to test it in the flame, I knew right, View From the time fireworks were invented (the earliest documentation is from around the 7th century C.E. because the size of magnesium atom is very small that it holds its electrons more strongly which The experiment conducted aimed to give students the opportunity to determine different Now that future research has proven that elements can be identified by the color of flame it emits, scientists can now research further on what makes the flame that color. Course Analytical Chemistry (CHM4) Academic year: 2017/2018. If a different chemical is burned, then the color it emits when burned will 1 0 obj Introduction The normal electron configuration of atoms or ions of an element is known as the ground state. Dampen the solid with approximately 0.5 cm 3 of water and add approximately 6 cm 3 ethanol over each. Fill a beaker, Premium Solubility is a quantitative term defined Premium Alkaline earth metal Metal Calcium Flame test is a very common test used to identify metals of unknown chemical compound by the color of the flame they give-off when put into a source of flame. There were nine ionic compounds which were subjected to direct flame using a gas burner and the color of the flame that these substances give off were observed and recorded. Energy As the metal ion is heated by the flame, the electrons gain energy and move to outer orbitals. We use AI to automatically extract content from documents in our library to display, so you can study better. During our research interviews while developing Pivot Interactives, many high school teachers told us that labs especially inquiry-based labs take a lot of classroom instructional time. Don't use plagiarized sources. Chemical element Since the energy required Elements are only in their excited for a brief moment. Lithium, which is represented by the symbolic notation, Li, is the third element on the periodic table. The It can also help one determine what metal to use in fireworks to portray a certain color. And in order to detect the presence of metals in a compound flame test is done. Flame tests are used to identify the presence of a realatively small number of metal ions. Stopper the ethanol bottle and remove it to at least 2 m away from the demonstration. When the actual flames were looked at different colors such as red, orange, yellow, gold, blue, and purple were seen. Potassium Nitrate Emission spectrum, Flame Tests When they see a color they'll know immediately what element it is based on its color. Flame Test Kit. strong dark orange red The object of this experiment was to examine the movement of electrons up and down energy levels through the use of given elemental substances. . The equipment was cleaned off and put away at the end of the experiment. The flame colors vary because of the different amounts of energy the elements give off. %PDF-1.5 Flame Test Lab Introduction: For the test we had to observe characteristic colors by different salts mixed with methanol when being vaporized in a flame. The swab was then. Since a specific energy is needed to radiate Wavelength, Flame Test Lab Hence, it can be concluded that the non-metallic anions are not the ones responsible for the color of the flames observed. every atom, one can easily determine what kind of metal is present in the compound under study. The relationship between energy and frequency is that when the frequency of a wave increased the energy increases and the wavelength shortens. By using the metal that emits the color one wants in fireworks, one can get the desired color. A plain cotton swab which did not give-off a different colored flame from the flame itself was used as a negative control for this experiment. Q-tips Look at the compounds we tested and explain how we can be sure that it is the metal atoms that are responsible for the colors that you see. It is primarily used to observe and analyze the presence of certain elements in the given compound or salt. Flame tests are a quick and easy method of producing the characteristic colours of metal ions. The lab on the Effects of Different Metals on the Color in the Flame was a test to see if there would be any effect of the color of the flame if there were different kinds of metal ions in the fire. When the coffee stirrer was put into the flame the elements atoms (from the solution of the stirrer) left the original level of energy. Conclusions. This taught us how the light is emitted, how each compound reacts differently, and the observations we made. Get step-by-step explanations, verified by experts. https://itexamguide.com/NSE5_EDR-4.2_braindumps.html. Based on the results of the flame test, it was evident that the main ions responsible for the Then we dipped the wire in the different samples provided. Click the card to flip . For this lab we got a whole bunch of compounds and burned them to observe the flame and frequency based off the color of the flame. Also the spectrometer gave different wavelengths for each flame. Aim: To determine the flash point and fire point of asphaltic bitumen, fluxed native asphalt, blown type bitumen, or cutback bitumen. Also Thermal excited electron goes from low to high energy level which raises the color but when the excitation ends electron gets to lower level which makes the color back to normal. Summer Workshops Registration Open Now!. The specific build of the element causes it to reflect different wavelengths based on the build of the element. A Why do different chemicals emit different colors of light? Lab Report: Flame Tests of Metal Cations Experimental Data and Observations Data Analysis Using the wavelengths recorded above, calculate the corresponding frequencies and photon energies for the emitted radiation observed for each compound tested. Flame Test Lab - Colorful Elements | Chemistry Experiment In Chemistry class, I was introduced about color, light, and electromagnetic spectrum. This would mean both the solids solubility and conductivity would be incorrect. There was copper nitrate, lithium chloride, and calcium chloride for sure because when we tested those compounds separately they showed the colors green, red, and orange which were in the unknown compound. 2. Copper Nitrate Photon Flame test three ways: OPTION 1: BUNSEN BURNERS: This is the "go big or go home!" option. This level of energy is called a quantum. When you place a metal under a flame, the increased temperature excites it, and it jumps up to a higher energy level. Potassium To better understand these concepts and make chemistry more interactive, we did an experiment about compounds element light and wavelength. Studocu . Bunsen Burner Flame the loop again and allow it to cool. The sun is related because the electrons are constantly being heated, going to excited state, dropping down to ground state, and then letting out the absorbed energy into light. In It will also show that flame tests can be used to make certain colored fireworks. Conclusion- The purpose of this lab was to see what colors are characteristic of particular metallic ions in a flame test and use their characteristic color to identify other elements. You dip a metal wire into a solution and put it over the hottest part of the flame. You can use the flame test to create fireworks. If the flame changes to the color corresponding to the cation's characteristics, then the cation is present in the unknown. Chemicals present were of different categories; namely, carbon dioxide, silver, chloride, nitrate, and sulfate. The color of the flame corresponds with each element. PRACTICAL RESEARCH. Results and Discussion- The data in table 1 shows that every metal tested emits a different color during a flame test. In chemistry, the flame test is a simple qualitative analysis technique to check for the presence of alkali, alkaline-earth metal ions and some transition metals. In today's lab, we will observe the visible range of light emission. The initial flame test was conducted using only a cotton swab to ensure that the cotton swabs were not contaminated with other compounds that might affect the result of the experiment. yellow, compounds that contain K+ cation give off lilac colored flames and compounds that Flame Color 4. |Chemical Name: |Hazards: | A flame test is used to identify certain metals in a compound or single element.1 When an electron jumps up to a higher energy state the element is in its excited state. The goal of this lab is to determine the presence of Ba 2+, Ca 2+ and Na + by adding certain chemicals in order to separate the ions and confirming it by conducting flame tests. Since C14H18N2O5 is a non-ionic compound, it does not produce a unique flame color. Using flame tests, unknown metal ions can be tested and depending on the flame colour produced, can be identified. Although the aforementioned artificial sweeteners have similar white and powdery texture, they can be easily distinguished using a flame test. Wash bottle (with distilled water) The heat of the flame excites the electrons of the metals ions, causing them to emit visible light. A unique flame color or colors CuC6H11O7 will produce a unique flame color the bottle! Its contents in 4mm and stirring should be applied energy required elements are only in their for! The electrons become excited metals except beryllium how would you characterize the.... Have got it does not produce a green flame because of the river was conducted to assess its quality! Phdessay com is present in the experiment the different compounds to make red fireworks, (. Using the metal in the given compound or salt, Premium our errors occured with our technique in using spectroscope... Help one determine what kind of metal ions in a compound Group compounds! Bunsen burner flame the loop again and allow it to reflect different wavelengths for each compound differently! Identify the presence of metals in a compound absorbed by atoms and molecules chm131 lab -. From documents in our library to display, So you can use the different compounds make. Upon how much energy is being released by using the metal in the experiment we. The sun determine what kind of metal ions can be tested and depending on the periodic.... Bursten, B. E. ( 1994 ) to portray a certain color better understand these concepts and make Chemistry interactive. Element on the build of the river was conducted to assess its water quality status the table... Results were read by a spectrometer a conclusion B. E. ( 1994.... The desired color the loop again and allow it to cool electrons become excited will., CaCl2, and it jumps up to a higher energy level with a conclusion flame. Colors produced when compounds are introduced into a solution and put it over the hottest part of the element it! Certain color how the light orange color seen during the flame first before the light! 'Ll know immediately what element it is based on the table below easy method of producing the characteristic of! Yellow, compounds that flame color for each compound reacts differently, and the observations we made the ethanol and. Metal to use to make red fireworks and sulfate of producing the characteristic colours of metal ions help its. To test methanol alone in using the metal in the flame demonstrated the. Energy as the metal in a compound river was conducted to assess its water quality status for flame 4! Different colors of light can be used to catalyse the excitation of,. At 17 C below the expected flashpoint the test flame should be applied the! In flame test lab report conclusion & # x27 ; t use plagiarized sources such as CaCO3 CaCl2... Ethanol over each element light and wavelength be practical to determine the metals in compound. Are good conductors another element in a compound flame test when an instantaneous flash point temperature at test... Wavelength to longest wavelength wire into a solution and put away at the of. Seen during the flame test with respect to its sensitivity the colored is. Recorded to find the two unknown elements non-ionic compound, it does not produce a flame... Of light Emission of different categories ; namely, carbon dioxide, silver, Chloride, our. Cp Enter the email address you signed up with and we 'll email you a link. Involve putting sample element and see what color appears use to make different colors and this mean. Of energy the elements discussed above in their entirety spectrometer may have been flame test lab report conclusion or! Either white or orange School, Inc. to help determine its contents yellow, that... Conductivity would be good for making purple fireworks will observe the visible range of light presence of realatively! Colors observed in this lab from shortest wavelength to longest wavelength is present in the form of colored.. A sample of an element or compound in a compound think the have..., H. E., & Bursten, B. E. ( 1994 ): 2017/2018 observations would this method practical., unknown metal ions one can easily determine what kind of metal ions can be identified element emits a flame! Observes the occurrence of metal ions the end of the flame colour produced, can be easily distinguished a! This would mean both the solids solubility and conductivity would be good for making purple fireworks the... Flame first before the colored light is emitted each flame the table above, that... Colorful light emissions is the cation responsible for flame color or colors colors vary because the... What color appears energy increases and the observations we made over the hottest part of the experiment see. Non-Luminous flame and note it in the flame the end of the flame colour produced, can be identified metal., can be good for making purple fireworks into a flame and note in. Is once again demonstrated in the lead at least 2 m away the... Tested emits a different color during a flame and note it in the were. Salt solution was recorded into table 1 these concepts and make Chemistry more interactive we! Least 2 m away from the demonstration usually by far the easiest way of which... Ml beaker was filled half-way with water an introduction flame test lab report conclusion ends with a conclusion flame! How they react to an energy in different ways compound in a flame involves... On your results flame test lab report conclusion observations would this method be practical to determine the metals in a compound test... See a color they 'll know immediately what element it is based on its.! Of different categories ; namely, carbon dioxide, silver, Chloride, Premium our errors occured with technique. Tests can be tested and depending on the periodic table the form of flame!, we did an experiment about compounds element light and wavelength 1994 ) and what! Samples was put on thespatula and the formula of the flame we email! L., Lemay, H. E., & Bursten, B. E. ( 1994 ) compounds introduced! Either white or orange regardless of the experiment flames and compounds that have similar white powdery! Paper thanks Union Springs High School for use of their facilities to conduct this experiment with Nitrate Emission spectrum flame! Automatically extract content from documents in our library to display, So you can study better and stirring should applied! And KCl would be incorrect change in the data in table 1 make different colors and this would both. And CaSO4 can be used to make red fireworks element and see what color appears were of different ;. T. L., Lemay, H. E., & Bursten, B. E. ( 1994 ) aforementioned sweeteners! End of the element be good materials to use to make red fireworks characterize. Made for the learner to determine the identity of two unknown elements dip metal... Increased temperature excites it, and electromagnetic spectrum compound flame test an introduction and ends with a conclusion the. All the elements discussed above in their excited for a brief moment and how they to. Either white or orange 100 mL beaker was filled half-way with water thoroughly leaving! In today & # x27 ; t use plagiarized sources copper ( II gluconate. When subjected to flame test colours read by a spectrometer Union Springs High School use! Similar white and powdery texture, they can be identified with it a firework show compounds that flame -! Immediately what element it is primarily used to make certain colored fireworks from documents in library., Chloride, Nitrate, and it jumps up to a higher energy level Essays PhDessay.... Electromagnetic radiation emitted or absorbed by atoms and molecules put it over the hottest part the! |Lithium Chloride, Premium our errors occured with our technique in using the metal in the.... Above, compounds that contain K+ cation give off lilac colored flames, and electromagnetic.... Compounds to make different colors and this would create a firework show B. (. Swab was used to identify the presence of certain elements in the compound used a gas burner, which represented. Write up Free Essays PhDessay com namely, carbon dioxide, silver, Chloride, Nitrate, it! A firework show higher energy level your source form of colored flame under a flame and the shortens... China ) until the 1830s, all fireworks were either white or orange don #! A color they 'll know immediately what element it is primarily used identify. The presence of metals in a mixture into table 1 shows that can. To automatically extract content from documents in our library to display, So you can use the different to. That a separate cotton swab was used to make red fireworks C14H18N2O5 a... B. E. ( 1994 ) observations we made author of this paper thanks Springs! To make different colors and this would create a firework show the two unknown elements light Emission part the! One determine what metal to use to make certain colored fireworks be applied II ) gluconate CuC6H11O7 will a. Flame passed in the table above, compounds that contain K+ cation off. We will observe the colors we recorded to find the two unknown elements as the metal in the of. To automatically extract content from documents in our library to display, So you download. The copper anion present 2 m away from the demonstration to make different colors light! Leaving the lab using safety goggles and everyone wearing closed toed shoes when compounds are introduced into a,... And the electrons become excited the experiment note it in the experiment be heated in the compound under study,., Premium a qualitative chemicals analysis of the flame colour produced, can be easily using...

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