For all the education research, and other education research study that may involve the study of the blood, urine or saliva samples, this is among the sites that will provide you with the required reports. Name:!!Date:! Helpful? 2. Blue, green, orange, red. Do not depend on answer keys to do your homework. I've done the whole thing myself so please dont say I'm being lazy and not doing my homework. Unit 4 Flame Test Lab DRAFT. 1. explain the effect of the chloride ion on the color emission. Demonstrate their understanding of the relationship between electrons, energy, and light by explaining it in their explanation of their results in the flame test lab in post-lab questions, group and class discussions, and the discussion section of their lab report for the flame test lab. 622. The Flame Test lab was an in-class lab where we tested chemicals in the flames to see the wide range of colors in the color spectrum. 3. What would happen if you used chloride compounds instead of nitrate compounds? I have no idea how to answer that other than that chloride readily takes up an electron since it is in the 7th group. Flame Test Lab Worksheet Name: _____Date: _____Period: ____ 1. Red … The Flame … I know some of the chemicals I used in the lab are the same as some of the ones in fireworks but i don't know anything else. What is the flame test? You could readily identify the elements that had obvious colors different form all the others- such as copper that gave off a blue/green color and lithium that gave off a bright red color. Flame Test - Flame Test Lab Report Answers - The Laboratory Report is among the lots of resources readily available to you on the Web for a wide range of education details associated to your laboratory work. What is the wave length of this radiation? Observe the colour of light that is given off by each salt. Give off light when it wants to lose energy and emitting light lets it return to its original orbital. Procedure: 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. These are the post-lab questions and background information for a lab concerning flame tests for various metal salts in solution. Share. Flame Test – Flame Test Lab Report Answers is free lab report sample. It is important to test the color of the control (methanol) so we know where it is on the visible spectrum and we know how it reacts to heat. Our Lady of Fatima University. CHEMISTRY LAB: FLAME TEST FOR METALS. Flame Test Lab Questions Answer Key: Oakparkusd.org. This is a lab I use in my Atom unit. Flame Test Lab Questions Answer Key: 1. 11th grade . Then we listened to the teacher about certain safety regulations and any questions needed to be answered. For the test we had to observe characteristic colors by different salts mixed with methanol when being vaporized in a flame. What happens when atoms lose the energy that was absorbed? Flame Test Part 1: Pre-Lab Introduction: In this lab you will conduct a flame test of 3 unknown solutions. Pre-Lab Questions: What color of light is the lowest in energy? This is the question in my chemistry class, and it tells us to look online for the answer...but I … The Flame Test lab was done in several parts. Segment Points Requirements (Missing Items circled) Pre Lab: Safety, Q’s, Background, Variables, and Materials After several tests for each solution it was determined that the accepted values for each solution, in order, were: Ba(NO 3) 2, yellow-green; Cu(NO 3) 2, green; LiNO 3 Post Lab Questions: Flame Test Lab. neutron. Answer keys for homework assignments are listed below. 4. Period:! Flame Test Formal Lab; SC4 (LDC Module #1) Chemists began studying colored flames in the 18th century and soon... https://www.windowssearch-exp.com/search?q=post+lab+questions+answer+key&FORM=QSRE1 read … Why were all of the ions tested in a nitrate(NO3-) solution? NEW! What is released when an electron loses energy? electron. 3. University. Approximate Wavelength (in nm)* Red. by es0231. Flame Test Pre-Lab discussion and Questions Chemists began studying colored flames in the 18th century and soon used the term “flame tests” to distinguish between some elements. 2. Dec. 30, 2020. This basic lab activity is ideal for physical science and introductory chemistry classes. Version 42-0189-00-02 Lab Report Assistant Exercise 1: Gas And Flame Tests Data Table 1. What is the purpose of using cobalt glass in the identification of sodium and potassium? It is important to test a control portion of the methanol without any other compounds, to be able to see what the color of the methanol’s flame is. Pre-Lab Questions: 1. Hi..I was wondering if anyone could help me w/ these questions I have for my Flame Test Lab.. tyvm! 120 47. Table (20 pts.) Question from Allen Flame test post lab questions answers. Students will record the dominant flame color observed. What is a common application or use of the flame test results for entertainment purposes? 2. Title (3 pts.) Purpose The purpose of this lab was to reinforce the examination of wavelengths in photons discharged from atoms as they move from high energy to low energy, atomic emmision. When you have completed your flame test lab, answer the following questions individually. Follow Your Instructor's Directions. The flame was orange at the end of each test because the wood splint started burning. How do we know that it is the different metals that produce a different colour and not the chloride? After watching the video, please answer the questions below. You may use you lab and completed omnigraffle. The Flame Test lab was an in-class lab where we tested chemicals in the flames to see the wide range of colors in the color spectrum. FLAME TESTS POST-LAB study guide by vocab4days includes 8 questions covering vocabulary, terms and more. You will measure wavelengths of each sample and then use the speed of light equation to determine the unknown chemical. I then ask students to read over the questions in the Flame Test post-Lab Write Questions to see if they have any questions about the post-lab work. Dominant Color. Blog. Please consider supporting us by disabling your ad blocker. Post-Lab Questions: Why is it important to test the flame color of the methanol without compounds dissolved in it? Template Notebook/Chemistry Labs/C-10007 Flame Test of Metal Cations/Post Lab Questions - created by Michelle Bunje on 2013-03-21 17:40:08 UTC 3. 4. Comments. Why do atoms of different elements give off different colors of light? Most salts contain a metal and a non-metal. When you have completed your flame test lab, answer the following questions individually. (Ba2+, Cu2+, Li1+, K1+, Sr2+, Ca2+, Na1+) 2. Pre-Lab Questions Purpose The purpose of this experiment was to observe the emission spectrum of atoms in a flame test.In this unit we are learning to identify trends and properties of atoms, and in doing so, we will look at the colors these elements give off based on their wavelengths. I don't know the answer to these questions: 1. Lab Partner: Avery Martin 12/17/12 Flame Tests ABSTRACT: In this flame test experiment, seven different known solutions and three different unknown solutions were tested in a burner. Please sign in or register to post comments. 77% average ... 25 Questions Show answers. Data Flame Test: Formula of Solid Element Name (Metal) of Color Flame Color kcl k Grey-blue Bacl2 Ba orange Srcl2 Sr red Nac1 Na Orange Cucl2 Cu Blue-green Cacl2 Ca Orange Lino Li Pink-red Determining identify of unknown compounds: Lab Analysis – Post Lab Questions 1) Write the ground state configuration of the following elements: a. What role did the cobalt glass play in the experiment? Our website is made possible by displaying online advertisements to our visitors. The responding variable was the color of the flame. What happens to an electron when energy is added? Dec. 30, 2020. The procedure works by heating up a substance to excite the electrons causing them to emit light. 2. explain the reason potassium was visible when using the cobalt glass. Different results than what you observed with the nitrate compounds because there were different chemical identities for the substances. Post-lab QuestionsAnswer using complete sentences unless the question is purely mathematical. Calculate the energy of a photon that has a frequency of 4.3 x 1019 hertz. The “flame test” lab is a classic experiment that is enjoyed by all chemistry students. Flame Test Post Lab Quiz Flashcards | Quizlet. The flame test is a procedure used in Chemistry to detect the presence of certain elements based on the element's characteristics. Why would you use distilled water an not tap water to make up the salt solutions? Red, orange, green, blue 5. Purpose (3 pts.) in chemisty i did a flame test labe with diffrent metal ions can any one help me with thes post lab question? The zinc and the magnesium both caused a popping sound or as my teacher called it, a "bark". The purpose of having the Laboratory Report is to help education researchers in addition to others who may be performing education research study in their labs and doing the analysis of the results. Involves placing the unknown element or compound sample to a flame to determine it’s identity through the flame color (emission spectrum). With this in mind, you do not have to stress over remaining in the same scenario once again. You may use you lab and completed omnigraffle. The flame test is a procedure used in Chemistry to detect the presence of certain elements based on the element's characteristics The test shows the identity of the substance being tested. Flame Test Lab Post Lab Questions: 1) In your own words, explain why different elements give off different colors when heated. Pre-Lab Questions: Answer the following in complete sentences (where appropriate) on a separate piece of paper: 1. 2. INSTRUCTORS: Rinse each looped wire with distilled water after each use. Flame Test Lab Post Lab Questions: 1) In your own words, explain why different elements give off different colors when heated. Post Lab Questions: Flame Test Lab. 2. 2. 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