Chemical tests

3, through the substance’s chemical properties and reactivity. This compound was discovered in a landfill and we needed to know as much information as we can about how the chemical will behave in different situations so that the city will not be negatively affected by the chemical.2 Thus, we first needed to identify the unknown substance, determine some of its chemical properties and reactivity, and also its synthesis.1 To accomplish this goal, we carried out five tests, the conductivity,…

patented in 1960’s. Chemiluminescence is a luminescence resulting from a chemical reaction which is how glow sticks work. A glow sticks has a glass vial, a small glass or plastic bottle for holding medicines, and you break the glass by bending the stick. This then causes the chemicals in the stick to mix and a reaction takes place. This experiment will test the length of time glow sticks radiate in different temperatures. Test if the stay lit longer in colder or warmer temperatures.…

compound consisted of performing various tests to detect the chemical and physical properties of the compound and comparing it to the list of possible compounds. The tests conducted were the solubility test which the compound fully dissolved in water, the flame test which had no discoloration when held in the flame, cation and anion tests which showed the existence of some halides like Cl, Br, and I, pH test in which the compound had a pH of 6, and the conductivity test which had an average…

Introduction: In this lab, seven test tubes containing solutions in equilibrium had different stresses added to them to examine the balance in each example. The purpose of the experiment was to indentify the details of shifting in equilibrium reactions and determine how the adding of a stress can affect a reaction. A chemical reaction that is in equilibrium is reversible, where a reactants can create products and products can go back to products. Equilibrium is reached when the rate of a…

effect of various temperatures on Enzyme activity Introduction: The basic properties of life revolve around chemical reactions. Without the presence of enzymes some of life's processes would not happen easily. An enzyme is a macromolecule serving as a catalyst, they are generally a protein based molecule, as it is in the lab, Enzymes are organic catalysts that control the rate of chemical reactions in cells while not being permanently changed or without being consumed, which makes enzymes…

time it took for the reaction to occur. To investigate the effect of the concentration of the substrate on the reaction time, four test tubes were used. In each tube, a certain amount of a starch solution and a potassium persulfate solution was added, while…

Introduction: Chemical bonding can be formed by joining two or more atoms together. Throughout the lab various experiments were tested to form a chemical bond. Most people can tell the difference between the two main forms of chemical bonding ionic and covalent. With each bond that comes with a reaction. There were four types of chemical reactions that were mentioned in class. They are as follows Synthesis, Decomposition, Single Replacement, and Double Replacement. Synthesis is one of the more…

the available chemistry classes, when the opportunity to job shadow a water operator at the Emlenton Water Treatment Plant arose, I took advantage of it. Even with my knowledge in chemistry, I went into the experience knowing only that they use chemicals, such as chlorine, to treat the water from the river. I came out of the experience with a more selective career path and a much greater knowledge and appreciation for water treatment plant operators. On my first day shadowing, I met my mentor,…

Draw resonance structures showing all the positions at which the positive charge is delocalized on the aromatic ring in the phenonium ion. If a methoxy group (-OCH3) or a nitro group (–NO2) were substituted in the 4-position on the aromatic ring, how would the stability of the phenonium ion change? Compare methoxy substituted, nitro substituted and unsubstituted, and order them by increasing stability. Explain your answer thoroughly. 2) Benzopinacol and benzopinacolone have nearly…

studied information about chemical reactions and how a catalyst is used to speed up reactions. We have learned that enzymes (proteins) in eukaryotic cells work as a catalyst to make this possible. Each enzyme in a eukaryotic cells has specific molecules it binds to, as they have a specific frame work. This specific frame work of the enzyme is known as the active site, designed to fit very specific substrates (molecules). This creates the enzyme-substrate complex where the chemical reaction…