Bunsen burner

pH value, close to 7. Using the same unknown solution, the flame test was then completed by first rinsing a wire loop in hydrochloric acid to clean it. The wire loop was then placed into the unknown solution, and held it over the flame of the Bunsen burner. The flame turned a bright orange, and the color change of the flame was recorded before rinsing it again with acid. To further identify the unknown compound, an additional solubility test was performed using acetone as the solvent. After…

antibiotic-resistant and will have at least one antibiotic that will be able to treat the infections. The null hypothesis is that culture’s A and B will be antibiotic-resistant. In the experiment, we started off by sterilizing a loop over a Bunsen burner. Once sterilized, we got a drop of water using the loop and put it on a slide and sterilized the loop once more. Once sterilized, the neck of a culture tube was flamed and bacteria were collected from the agar in the culture tube. The test…

Introduction : Enterotube II is used to identify multiple tests in one tube. twelve different conventional media plus a self-contained inoculating wire. The twelve test are for glucose and gas, then lysine, ornithine, H2S and indole, adonitol, lactose, arabinose, sorbitol, dulcitol, phenylalanine (amino acid), urea, and citrate (No VP test require). These medias performs 15 different biochemical tests that will determine the genus and the species of gram negative bacteria. This test will help…

to replace hydrogen in the compound5. In this reaction, nitric acid and sodium carbonate reacts to produce sodium nitrate and carbonic acid (equation 13). In the combustion reaction experiment, the isopropyl alcohol is ignited by the flame of the Bunsen…

Investigating Properties Lab Ishan Godra SCH4U Lab Partner(s): DeSean Lawrence Ms. Boulougouris 10/31/14 Purpose The purpose of this experiment is to analyze the properties of four different types of solids: ionic, polar covalent, non polar covalent, and metallic Hypothesis It is hypothesized the samples which are shown to be insoluble are likely non polar, while soluble samples are polar. Because of the molecular nature of each type of bond, it is hypothesized that polar…

Topic: Identifying Unknown Substances. Equipments: • 5 test tubes. • 1 beaker of Acid 1 beaker of water • 4-Litmus papers • 2 Pipette bulbs. • 1 robber stopper. • 1 Bunsen burner. • Q-tips(4). • Scoopula. Observation: Which substance is which? Hypothesis: All the unknown substances that we have are soluble in water. Procedure • We had a 4 test tubes filled with small amount of white powder. We labeled each test tube. For example the first test tube was labeled as “Substance A” , the second…

For a histology lab to be safe and secure there are many activities and procedures that have to be adhered to and evaluated. A majority of issues which occur within a histology lab are most likely to be those about incidents linked to the equipment used, hazardous chemicals, bio hazardous materials used and general risks such as electrical or fire hazards. I am going to discuss the best possible ways to make sure that quality performance within a histology lab, in relation to health, safety and…

materials: 20 mL sand, 100 mL water, 1 gram salt, a glass stirring rod, and a 250 mL beaker. Separating this same mixture requires the following materials: the mixture from the previous step, 2 250 mL beakers, filter paper, 20 mL of extra water, bunsen burner, a sink, and a distillation system. A beaker was set up to hold the mixture, first 100 mL of water was added to the beaker as the base. Following the water, 1 gram of salt was added and stirred until fully mixed by a glass stirring rod.…

compound, except for the flame test. In the flame test, a nichrome wire is dipped into the unknown compound aqueous solution (compound dissolved in H2O). Then, the dipped end of the wire is then held over the Bunsen burner briefly. If a different color of flame is emitted besides the Bunsen burner flame color, then the respective color correlates the existence of a specific cation in the compound- brick orange yields Ca2+, pink yields K+, yellow yields Na+, and green yields NH4+. If the color of…

Introduction In this lab report I use two different techniques to identify Unknown A and Unknown B bacteria’s. These techniques are gram staining and metabolic testing. I first used Gram staining to distinguished and identify the bacteria’s. Han Christian discovered gram staining in 1882, he had biopsy a patient lung that had pneumonia. The main purpose for Gram staining is to identify if is Gram positive or Gram negative by using differential staining. While Gram staining shows the…