Background In the Flame test lab we took a simple wire‚ looped it‚ and rinsed it in HCL (Hydrochloric Acid ). Then we dipped the wire in the different samples provided. The samples provided were Sodium‚Potassium‚Calcium‚ Barium‚ Strontium‚ Lithium ‚ and Copper II. Finally we put the wire loop into the flame of the bunsen burner. The flame erupted into many different colors for each specific sample. We then used the colors we recorded to find the two unknown samples given to us. But the question
Premium Oxygen Light Chemistry
Purpose: To use a set of standardized procedures to test for simple sugars and starch‚ proteins‚ and fats. Hypotheses: A.) B.) C.) Equipment: -Safety goggles -Lab apron -400 mL beaker -Utility stand with ring clamp -Hot plate -Thermometer -10 mL graduated cylinder -Test-tube racks -8 to 16 test tubes -Test tube holder -Medicine dropper -Rubber stoppers -Test-tube brush -Wax pencil -Distilled water
Premium Nutrition Cholesterol Starch
ions. Materials: Safety glasses 10 test tubes Test tube rack Paper Pencil 50 mL beaker Bunsen burner Nichrome wire Barium Nitrate Copper Nitrate Strontium Nitrate Lithium Nitrate Potassium Nitrate Sodium Chloride Calcium Nitrate Unknown solutions A‚B‚ & C Hydrochloric Acid Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the names of the solutions and unknowns. 2. Place about 5 mL of each solution into each test tube‚ and 10 mL of Hydrochloric Acid into
Premium Metal Ammonia Potassium
Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
Premium Escherichia coli Bacteria
Lab 8- nitration of Methyl I Benzonate Date of experiment: INTRODUCTION: The nitration of methyl benzoate is an example of an electrophilic aromatic substation reaction. In the experiment the electrophile was the nitronium ion and the aromatic compound was methyl benzoate and with addition of nitrating solution Methyl 3-nitrobenzoate was the product. Methyl benzoate Methyl 3-nitrobenzoate MATERIALS AND METHODOLOGY: The procedures for this experiment
Premium Benzene Chemistry Sulfuric acid
The overall purpose of the lab is the understanding of the process and goals of the scientific method. This lab illustrates that this method is very useful to answer a question or address a problem base on observations and the available information. Hypothesis: There are more red marbles than black marbles. We were able to address our hypothesis with the data collected because 26.32% of the marbles are red and just 14.47% are black. Also‚ the percentage of red marbles is the biggest in comparison
Premium Chemistry Magnesium Oxide
then falls back down to its ground state‚ and out comes a photon (light). The electromagnetic spectrum contains color that we can and cannot see. The color blue has the highest energy with shorter wavelengths and a higher frequency while the color red has the lowest amount of energy with long wavelengths and a shorter frequency. Hypothesis: If you observe the characteristic emission spectra of several gases and
Premium Electromagnetic radiation Light Spectroscopy
FLAME TEST Summary The purpose of this lab was to see how different compounds can change color while in a flame and with this color‚ I can identify the compound. The test involve putting sample element and see what color appears. 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. In order to determine the identity of several unknowns‚ I will perform flame tests and
Premium Light Quantum mechanics Atom
Flame Tests By: Jordan Anthony‚ Zack Balog‚ and Evan Degraw Regents Chemistry class‚ Union Springs High School‚ 4th period January 19/2015 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. Another purpose is to understand how fireworks work. This experiment will help one understand how a flame test is performed and that every metal has a unique bright
Premium Potassium Metal Color
photosynthetic pigments and has a higher energy wavelength than red light‚ we predicted that juniper needles placed in blue light would photosynthesize faster than juniper needles placed in red light. We measured the rate of change in CO2 concentration due to juniper needles. For each sample‚ we placed the needles into a chamber connected to the CO2 monitor and measured the rate of change of CO2 concentration for 10 minutes under red light and then 10 minutes under blue light. We ran three independent
Premium Photosynthesis Light Plant