Periodic Table Lab Report

Page 13 of The Disappearing Spoon ties into learning goal 22. Learning goal 22 ties into this page because the page discusses about how the periodic table is arranged by the different types of elements such as metals, metalloids, and nonmetals. On the western side and the middle part of the periodic table, you will find the metals which make up seventy five percent of the periodic table. On the eastern side, you will find the gases or

These reactions can be seen from just a little bit of reaction all the way up to a complete change of the entire sample tested. Some samples of those tested in this experiment which showed the chemical reaction were the baking soda/ammonia mixture, the Epson salt and baking soda mixture as well as the food coloring mixed with the baking soda and bleach. 2. Which reactions, if any, do you believe showed no evidence of chemical change? Justify your reasoning.

In reference to the analysis of anions, Table 1 shows that a precipitate was formed when our unknown was combined with HNO3 and AgNO3, thus indicating the presence of a chloride ion. Because our unknown did not form a precipitate due to HCl and BaCl2, separate, effervesce, or smell, we concluded that neither sulfate, nitrate, carbonate nor

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

When the red Co(NO3)2*6H2O crystal was added to the white NH4 crystal, and water was added to dissolve, the solution turned blue in color. As the solution was nixed, the color changed to that of a blue-purple and a blue precipitate formed. When the 6 M NH3 began to be added, the color shifted to dark purple color after 15 mL of ammonia and the amount of the precipitate was less. After 20 mL of ammonia, the solution became a red brown with very little of the blue precipitate. After 30 mL of ammonia, the solution was similar in color to an iodine solution, a dark brown-red, almost black in color. At this point there was no visible precipitate on the surface of the solution. After 40 mL of the ammonia had been added, the solution was the same iodine like color as before. When closely examined, there was a black precipitate that had settled on the bottom of the beaker. At this point, hydrogen peroxide, 3% H2O2, was added to solution. After 4 mL of the H2O2 was added, the solution was the same color and the precipitate had not changes. After 8 mL of the H2O2, there was not noticeable change. After 12 mL of the H2O2, the solution was slightly redder in color but the precipitate had not changed. After 15 mL of H2O2, the solution was the same color and no changes had occurred to the precipitate. At 17 mL, the solution began to effervesce slightly, though there

The purpose of the lab was to mimic the way Mendeleev placed the elements on the periodic table. Mendeleev was a Russian chemist who produced the first orderly periodic table. Frist, the way the periodic table has been classed alongside the atomic sum and the elements with related properties. Second, the objectives are observeing the physical states of common elements, and the progression of the periodic table, lastly speculate by determining the unknown elements established on the observed progression. As a group we tried to find out where the unknown elements should be placed. Finnly, the information that was given to help us with our process was the state, density, hardness, conductivity, melting point, and color.

An elements¡¦ reaction to certain substances may be predicted by its placement on the Periodic Table of Elements. Across a period, an element on the left will react with more vigor than one on the right, of the same period. Vertically, as elements are sectioned into groups, the reaction of each element increases

Solutions of 6M H2SO4, 6M NH3, 6M HCl, 6M NaOH, and 1.0 M of NaCl, 1M Fe(NO3)3, 1M NiSO4, 1M AgNO3, 1M KSCN, 1M Ba(NO3)2, and 1M Cu(NO3)2 were given in separate test tubes. The color of possible precipitates, ions, acid-base behaviour, odor and solubility rules were conducted and were reported in Table 1. The key information about a mixture of two solutions was

In order to test the hypothesis, the same tests given in Table 1 and Table 2 were performed on a sample of calcium nitrate. The results obtained for all the tests were the same as with our unknown compound. To further test this hypothesis, five different reactions were designed, as can be seen in Table 3, in which a

Chapter 12 of Kean’s bestseller focuses on how politics had a major influence on the development of the periodic table. The majority of the chapter takes place during the mid-1900s and therefore, as one might

When Newlands first made his interpretation of the table, he did not have all of the elements figured out simply because not all of the elements that are known today were discovered at the time. He believed the table looked incorrect due to the empty spaces portrayed throughout the periodic table, so he made up some elements and atomic numbers for these fictional elements. In addition, he misplaced the elements for the public even though he knew they were not appropriately placed in order to cover up the holes in the table. " Regular repeats Newlands' table showed a repeating or periodic pattern of properties, but it had problems. For example, he put iron in the same group as oxygen and sulphur, which are two non-metals.

The book “The Periodic Table” by Primo Levi is undoubtedly a masterpiece. It showcases the enthusiasm, the level of dedication, and passion successful chemists such as Primo Levi himself had for the field of their expertise. The way Primo Levi has related the troublesome times and events he had to face in prospect with the elements of the periodic table is laudable. Primo Levi is surely an inspiration and a perfect example of prodigy and passion. Despite the challenges and the hardships inflicted on him by the bigoted group of Germens, he still managed to emerge as an exceptional chemist and an author who made great contributions to the modern chemistry as we now know it.

3. How the Periodic Table of Pokemons show periodicity, or the trends occurring, are through the rows and columns. For the columns, from up to down, the Pokemons will increase in. Whereas they get heavier from left to right for the rows. Because of this the trend is as the table goes to right, the Pokemon get heavier and as the table progressively goes down, they get heavier. Basically the closer the Pokemons are to the top left corner, the lighter and shorter they are and vise

These data points are recorded by the student to use current chemical formulas to discover the specific heat of the metal used in the experiment. Out of the three classifications on the periodic table - metals, nonmetals, and metalloids - metals is the most prominent (Encyclopedia Britannica). Taking up 91 of the 118 elements on the periodic table, metals are usually lustrous, good conductors, have a high melting point, are highly dense, malleable,

Elements are arranged in the periodic table in order of its increasing atomic number. The table allows chemists to make accurate predictions of physical and chemical properties from any element. On the periodic table it features: groups- vertical columns within the table which will contain elements with almost the same chemical reactions & as well as physical properties which result from a common number of electrons in the outer shell. It also displays periods, which are rows