Unknown Compound Verification Lab Report

For this experiment, the materials needed include an

The diction of fire in Fahrenheit is pretty confusing because it's not just one word. There’s multiple words to describe fire that may even seem shocking because of the ways it’s presented. In this analysis, you’ll find that Ray Bradbury is taking fire to a whole other level. He’s not just describing the physical appearance, but also the literal sense of fire. By the end, Bradbury’s message will be clear.

The definition of the term fire is burning, in which substances combine chemically with oxygen from the air and give out bright light, heat, and smoke. Other than the denotation of fire, however, the term fire has many symbolic meanings. Fire has the ability to result in destruction or promote life. Fire contains many uses and can either symbolize destruction or comfort. Throughout the novel Fahrenheit 451, the author Ray Bradbury conveys the symbolism of fire.

Step 2: Mix both test tubes , shake gently and time the reaction. Step 3: The same step as procedure 1, and step 3 which is to record the observed color step 4: use the palette/color chart to help you identify the observations you make. Safety precautions: Pull your hair back Safety eye goggles Closed toe

1. How pure is your sample? When analysing our sample under UV light we could see if our sample was pure. We labelled the sample with 1= which was our sample, 2= the pure aspirin sample, 3= the salicylic acid.

The only part that was irrelevant was the appearance of the drug. All but one drug looked like white powder. Even white medicines are dyes to look white (“Toxins in Vitamins and Medicine”). The appearance of the drug therefore does not help us identify what drug the Unknown drugs are. Our conclusion is irrefutable because Unknown A was the same as Excedrin in every category we tested and the same goes for Unknown B and bufferin.

Weighed 1 gram of NaC2H3O2 and mixed it with ionized water. Boiled 12 mL of 1.0M Acetic Acid added into a beaker containing the sodium carbonate on a hot plate until all the liquid is evaporated

The objective of the sludge lab was to determine how many different pure substances were in the sludge by using the methods and techniques we have learned throughout the year. We had to pick separation methods so we could separate our sludge and then test characteristic properties on our separated liquids and solids. This experiment made us use our knowledge on characteristic properties to pick the ones we should test to help us identify our pure substances. Characteristic properties are properties that help identify a solid or liquid. Each solid or liquid has a certain density, boiling point, solubility, flammability, so if you know what each one is then you can use that information to help you identify your solid or liquid.

Exothermic Reactions When chemical reactions happen, energy is taken or given to its surrounding environment. This happens a lot with a temperature change. This can be seen using a thermometer. Some examples of exothermic reactions are burning, rusting, and neutralization (reactions between acids and alkalis). Exothermic reactions can be used in everyday life.

13. Record your observations in a table and record your findings. 12. Precautions 1. Be cautious when dealing with flames or the stove during the boiling of the water.

A physical reactions goes into a physical change of substance. It does not change the composition normally. Physical reaction in a substance does not change what the substance should be. chemical change forms a chemical reaction, new substances are formed, and the energy is either giving off or absorb. Elements is a substance made of the same atomics.

Also, although this likely served no contribution in disheveling the results, using a stirrer of the same material to ensure the separate testing of each substance will be as uniform as

CHAPTER I: INTRODUCTION  1.1 Introduction The purpose of this dissertation is to seek out existing good practice in the selection process of fire protection strategies for buildings and to make suggestions that inform successful decision making on future projects. This will be achieved through the identification of the key considerations that influence design teams when selecting appropriate fire protection strategies. Further to this will be the identification of the design process and the clarification of their influence on the selection of the overall fire protection strategy. Fire safety in buildings is not a new topic but seriously being developed by many researchers over a period of time, especially fire safety in workplace.

3. Oxidizing (Fig. 03) Substances with this symbol must be kept away from combustible, flammable and spontaneously combustible materials. Examples for such substances are potassium nitrate, lithium peroxide and sodium chlorate. 4.

The chemical equation for this experiment is hydrochloric acid + sodium thiosulphate + deionised water (ranging from 25ml to 0ml in 5ml intervals)  sodium chloride + deionised water (ranging from 25ml to 0ml in 5ml intervals) + sulphur dioxide + sulphur. As a scientific equation, this would be written out as, NA2S2O3 + 2HCL + H2O (ranging from 25ml to 0ml in