Sodium compounds

During the experiment, observations were made about their physical appearance. In part I, reaction one produced a blinding, bright white light when the metal burned and the metal turned into a white powdery substance. For reaction two, there was no reaction at first and it took a long time for it to react, but then bubbles started to form around the magnesium ribbon and the substance turned into a pink-yellowish color around the magnesium strip when it was placed in the 150 milliliters beaker.…

product in the lab. They have the ability to do this due to the molecules of the dyes possessing conjugation. Conjugation is defined as p-orbitals overlapping which causes the electrons within to be delocalized; it is also seen in molecules and compounds that contain alternating double bonds. Systems that possess conjugation absorb energy in the ultraviolet-visible region of the spectrum to cause excitement of electrons and the transitions. When the electrons get excited, they jump from lower…

or not chemical compounds affect water 's heat resistance/reception. In other words, how does the temperature of water (H2O) change when chemical compounds - such as sodium chloride and sucrose - are added? In this experiment, the independent variable is the chemical compound being tested while the dependent variable is the temperature of the water. The constants are the surface being tested on which is a stove, the amount of water being used, the amount of grams used for the sodium chloride and…

experiment is to identify the unknown compound the lab group was given. Along with this, the group is to discover the compounds many physical or chemical properties. Lastly, the group is supposed to create and preform two syntheses of the compound and see how they compare and contrast in different areas like costs effectiveness, safety, and potential yield of the compound. Through all of these different goals, the underlying key goal is to learn more about this unknown compound through the…

with change from one substance to another. For an example toast burning is a chemical change as the bread is turning into ash and can’t be turned back into toast. Everything around us is made up of either atoms, elements, molecules, mixtures or compounds. Atoms consist of three…

and process sludge” (Philip, et al. p 313-314). About 6,900 tons of lindane (hexachlorocyclohexanes), 2000 tons of chlorobenzene, 200 tons of dioxin-contaminated trichlorophenol, 2400 tons of organic sulfur compounds (e.g., lauryl mercaptans), 2400 tons benzylchlorides and 2000 tons sodium sulfide/sulfhydrates” among others were been buried in the love canal over a ten year period. (Gensburg, et al. 2009, p 209; Kim, 1981…

the chemical was heated were used to create a logic tree, which allowed for the unknown compound to be identified with simple yes/no questions. Materials and Methods Part One: In the metal hydroxide test, the first step was to add 10 drops of…

to calculate the theoretical yield, the number of moles (the amount of substance containing 6.02x1023 entities) of each compound should be calculated according to the formula: n = m/M Where n is the number of moles, m is the given mass of a substance in grams, and M is the molar mass of…

chemistry. The reaction involves mixing two chemicals were to form an excited (high-energy) intermediate that releases energy as light. This experiment first synthesized luminol by reducing 5-nitro-2,3-dihyodropthlazine-1,4-dione, using sodium hydrosulfite (Na2S2O4) and 3M sodium hydroxide (NaOH). The amount of luminol collected was 0.2693 g with the percent yield of 161%. The product of the first reaction was then used to recreate the chemiluminescence experiment by mixing luminol, oxidizing…

aldol condensation is when an enolizable aldehyde or ketone undergoes a reaction, in the presence of a base or acid, and gives a beta unsaturated ketone or aldehyde (Utah Valley University, 2009). This type of reaction can also add carbonyls to a compound, using similar methods to the Grignard reaction. It is also important to note that in order for this reaction to occur, an alpha hydrogen must be present on one of the reagents (Farmer, 2013). In the following experiment, dibenzalacetone is…