Molecule

The purpose of the lab was to determine which unknown substances were ionic compounds, if any, using 4 different methods. This lab was to determine which of the three unknown substances (X, Y & Z) are ionic compounds and which are not ionic compounds. In conclusion unknown Y is an ionic compound and unknown X and Z are not ionic compounds. In order for a substance to be an ionic compound it must have a high melting point, it must be brittle, it must be soluble in water, it can not conduct…

Chromate The Prefix word “poly” implies to the word many, but even ions of two atoms are usually referred to as polyatomic. Majority of the Polyatomic ions that are used with Oxygen will have the word “ate” in them. Nitrate is an example of a Polyatomic Ion. Polyatomic Ions are referred to as a radical, and less commonly, as a radical group. There are many differences between a polyatomic ion and a compound. Polyatomic ions are composed of two or more atoms that are linked to covalent…

The purpose of this lab was to determine the formula of copper chloride hydrate by dehydration through heating, rehydration through adding water back in, the reaction of aluminum with the copper chloride hydrate to produce solid copper, and the weight of this copper. To accomplish this, a petri dish was weighed and 1.01 g of copper chloride hydrate was added to the dish. The solid salt crystals were broken up to make sure that all of the hydrate would be heated the same. Next, the petri dish and…

Purpose The purpose of the experiment that the students are conducting is to determine the empirical formula of the copper chloride hydrate by the data that has been collected throughout and that will allow the students to “investigate the effect of heating a hydrate salt” (Sanders). This will be achievable after finding the masses of chlorine, copper, and water. Introduction In this experiment, the students are using the law of multiple proportions to find the chemical formula for the compound…

In Fig 4 pore size distribution profiles of the Y and MY is observed. By the BJH method, which uses desorption branch of the nitrogen isotherm in order to calculate the pore size distribution and the adsorbed volume[12], the pore size in the range of only 1.4 nm could be seen in Fig. 4a. Presence of various distribution of pore size is the manifest of the related BJH of the MY zeolite in Fig. 4b. As can be seen there are the pore size distributions from 1.2-6 nm in which the pores in the range…

Purpose To understand the properties of a hydrated ionic compound and the process of converting hydrates into anhydrous ionic compounds. Question What is the formula of hydrated copper (II) Sulfate, CuSO4 • xH2O? Hypothesis When hydrated copper(II) sulfate is heated, the high temperature will cause the water and copper(II) sulfate to decompose forming anhydrous copper(II) sulfate and water (vapour). The reaction which will occur is decomposition. Materials 1. 400 mL beaker 2. beaker tongs 3.…

Ionic and Covalent bonds are the two different types of bonds that hold atoms together, each having their own characteristics. The distance and charge determines the type of bond the molecules have. These bonds occur because atoms strive to obtain the ideal valence of 8. Some atoms need to gain or lose electrons in order to achieve the ideal valence. In a covalent bond, the electrons are being pulled by two atoms that are both nonmetals. In other words, the two atoms are sharing electrons, but…

: The chemical formula of a compound will be determined using the mass of each individual element that is present in a weighed sample of that compound. The chemical formula shows the proportions of elements in a specific compound. This proportion is uniform to all samples of the same compound. Using the mass of each element, the moles of the element in the compound can be found and then compared to that of the other elements. This will create our atom ratio which will lead to our mole ratio. The…

The goal of the lab was to identify an unlabeled compound found in the chemistry stockroom to be able to dispose of it properly. This lab demonstrated the process of identifying an unknown compound as well as synthesizing the compound. Identifying the 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…

Gas Hydrates are a crystalline solid formed of water and gas, the gas is mostly methane. It looks and acts much like ice. It is important to study gas hydrate because it is a potential source of energy for human survival in the future as there is a critical need for a cleaner and viable source of energy (Sun et al., 2011). .It was earlier speculated that gas hydrate is only found in space but later research showed that it can be found on almost every continent on the earth (Mongillo, 2011). Gas…