Bunsen burner

P1 – Task 1, M1 – Task 2, M2 – Task 3 Iodine Extraction Equipment:  Goggles  Fume cupboard  2X 250cmᶾ beaker  Filter funnel  Filter paper  Separating funnel  Bunsen burner  Tripod  Gauze Method: 1. Set up the equipment with the Bunsen burner and tripod on the heatproof mat with the gauze on top of the tripod. 2. Add the seaweed to the tin lid and place on top of the gauze (try not to use any ‘pods’ of seaweed as they pop when heated which could be dangerous). Light the Bunsen burner and heat the seaweed in the tin lid on the blue flame until it has all been reduced to ash. This step involves heating the seaweed so it is reduced to ash to extract the iodine (in which it is present as an iodide) and make it easier to incorporate with…

A study was conducted to test the efficiency of the TPS created, by changing the size of the flame. The flame sizes tested were 3 cm, 5cm, and 7cm. It was predicted that if the flame was bigger, then the screw would fall out quicker because there was more of the flame exposed to the TPS, causing it to deteriorate quicker. It was found that 5 cm flame caused the least amount of damage to the TPS. It showed that the TPS was very effective, because the screw stayed attached to the wooden dowel for…

In this lab report a number of tests and results will be discussed. Unknown labs are performed for many reasons ranging from figuring out the causative agent in a diseased patient, to knowing the correct microorganism to use when making certain foods and antibiotics. Unknown labs are a key to testing the knowledge a student has gained throughout the course. Materials: Microscope Bunsen Burner Beaker Test Tube Holder Test Tube Clothes pin Striker Loops and Needles Distilled Water Crystal…

Remove the cap from the bottle containing the culture of Bacillus subtilis. Pass the neck through the Bunsen burner flame 2-3 times. Remove a few drops of culture with the sterile dropping pipette. Flame the bottle neck again and replace the cap. Lift the lid of the Petri dishes. Place 2-5 drops of culture in the centre of the dishs. Replace the lid as quickly as possible. Discard the dropping pipette into the beaker of disinfectant. Take the bottle of melted agar. Remove the cap and pass the…

again it had nonpolar covalent bonds. This then left 9 unknown solids still to be determined. The next test that was completed in order to determine the solids bond type, was heating the solids over the Bunsen Burner. This allowed to see whether the solids would melt around 100 to 500C. Out of the solids tested, unknown 2, 5, 7, and 9 melted over the Bunsen Burner. While unknown 1,3,4,6, and 8 did not. The solids that melted over the Bunsen Burner were more likely to be determined to have polar…

Disappearing Spoon Essay Tanner Rapp In this book about the periodic table and how each element was discovered and how it affected each scientist when they discovered it. The story shows scientist such as Maria Goeppert, Dimitri Mendeleev, Robert Bunsen, Fritz Harbor, William Crookes, and many more. However, in this essay I am going to write about Dimitri Mendeleev, Robert Bunsen, and Fritz Haber. Dimitri Mendeleev is a very important scientist when it come to the periodic table, he is…

A: The purpose of heating the seaweed was so that it turned into ash. We did this by placing the seaweed in a tin and burning it from the Bunsen burner. This was done so we could get iodine from the seaweed to use in the experiment. This produces the iodine we need to begin the experiment. A problem that could have occurred was placing too much seaweed in the tin so it took a lot longer to burn. Also, a bit of the seaweed were popping out the tin which is a health and safety concern so we must…

The observed colour was orange, which fit the emission spectrum. Few specks of blue were observed, this might be due to the Bunsen burner not being completely cleaned or the sodium not being completely pure. The observed colours match those of the spectrum, and can be accepted as true. The observed colour for lithium was a dark red colour. Lithium’s emission spectrum consists of purple, blue, cyan and red. Few darker specks of blue were observed, possibly from the same substance that made the…

must be prepared for testing by: • Dissolving the solution in distilled water • Filtering the dissolved solution • Evaporating the water to increase the concentration Equipment 1 beaker 50ml of distilled water Stirrer 1 Funnel Filter paper 1 crucible 1 Bunsen burner 1 heatproof mat 1 tripod 1 teaspoon of soil sample 1 conical flask 1 Pipeclay triangle Method 1. Place the soil sample in the beaker and add 50ml of distilled water and stir until dissolved. 2. Place the funnel into the…

#2: Heating sodium bicarbonate produces sodium carbonate, carbon dioxide and water vapor. #3: Sodium bicarbonate decomposes into sodium oxide, carbon dioxide, and water vapor. Materials: Crucible and Lid Crucible tongs Ring Stand Bunsen Burner Pipestem Triangle Wire gauze Ring Clamp 5.68 grams of Sodium Bicarbonate Scoopula Spatula Scale Procedure: First record the mass of a dry empty crucible and lid, and then using the scoopula scoop in some Sodium Bicarbonate, in this experiment there is…