6- Place only the edge of the Q-tip at the top the Flame. 7- Remove it when you see the of light being given off to avoid burning the Q-tip. 8- Clean up procedure: Discard used Q-tips to the bin, cover back compounds and put them up in a safe place, pour away distilled water in the sink, disconnect the Bunsen burner and clean it if stained,clean the lab test surroundings with paper towel to ensure no stain is left, wash your hands remove your goggles only when all equipments have been placed in safe places. Compound | Flame Colour Observation | 1 LiNO3
Please remember to follow all safety precautions, such as wearing gloves and eye protection in case the fiber should break as shown in the picture below: (Cables plus, n. d.) There is also an oven-cured epoxy method that follows different steps: The epoxy is injected into the connector and then the connector is assembled. Step 1: Turn on the curing oven and set the temperature as recommended by the epoxy manufacturer. Step 2: Mix the epoxy according to the
Introduction: In lab 3, I will learn how to separate the mixtures of solids and get comfortable with the different techniques of separating the solids. Because the solids have a different chemical makeup, different techniques will be used to separate them. I will be using the four different solids: sodium chloride, benzoic acid, silicon dioxide, and iron and follow the directions in order to separate each solid according to their differences in chemical makeup. Material and Methods: The essentials to this lab will be distilled water, crushed ice for the ice bath, one 100 mL LabPaq glass beaker, burner fuel and stand, cylinder, funnel safety goggles, digital scale, magnet bar, and the mixtures of solids. In order to remove the iron filings I will use the iron bar since it the composition of iron will be picked up by the magnet.
Separate the sand by boiling water and pouring the water off, then move on to separating the Benzoic acid using filter paper. Lastly separate the salt out by allowing the water to evaporate from the solution. Data Tables: Data Table 1: Experiment Data | | Grams | Percent of mixture | Iron filings | 1.5g | 24.6% | Sand | 1.6g | 26.2% | Table salt | 1.8g | 29.5% | Benzoic acid | 1.2g | 19.7% | Total | 6.1g | 100% | Questions: A. I proposed the magnet would remove the iron from the mixture. I thought the sand might be removed by filtration. I thought distillation would remove the salt.
In this case, the simplest formula of Magnesium Oxide. Apparatus / materials * Bunsen burner * A crucible * Clamp and stand * Pipe-day triangle * A piece of Magnesium metal * A dropper * An electric balance * A wire gauze * A pair of tongs Safety precautions * Handle the Bunsen burner and hot items carefully to avoid any burn injuries. * When adding water to the possible product Magnesium nitride, keep distance due to spattering which may occur. * Safety glasses must be worn at all times. * Dispose of any solid residue as directed by your instructor.
Materials: 1 rectangular container 1 grease pencil 4 petri dishes 4 pieces of filter paper or paper towel 40 radish seeds (10 per petri dish) 1 paper plate Tweezers 100 mL beaker Stirring Stick Salt (1g, 2g and 3g)-measured out for you Dropper Procedure: (Don’t forget to take notes in your lab notebook. Keep a detailed description of every step you take so that someone else could accurately and precisely reproduce your results). See Lab Report Format for how your final Lab Report should look. 1. Determine what your group’s hypothesis will be and write it as an “if, then” statement on your lab report.
Procedure: Weigh out the mixture, and then use different techniques to separate them from each other. Using the magnet to separate out iron filings, boiling the substance to separate out the sand, and filtration paper to separate the salt and benzoic acid. Once substances are separated and dried, weigh them out to receive a total amount. III. Experimental Data: The original weight of the mixture before separation was 4.6g.
Graduated cylinder 8. Calculator 9. Wash bottle Procedure: To commence, first I gathered all the material needed to keep from being too messy with the experiment. Next I went to collect my unknown liquid and metal since the material and purpose was to find the mass and volume of them and located their place of origin from the data collected. Once all the equipment has be gather, step one was to clean the flask because a dirty flask might have an effect on the precise mass of it.
* Gloves are to be worn whilst the experiment is in motion. * If an allergic reaction to iodine occurs, notify teacher immediately. Method: Room Temperature (23°C) : 1. Measure and pour 10cm3 of Iodine solution and 10cm3 of Starch solution into separate test tubes. 2.