Calcium oxide

Title: Percent Composition of an Oreo Cookie Purpose: The purpose for this experiment is to ensure our understanding of percentage composition, as well as prepare us for writing more in-depth lab reports later on. Our objective was to find the percentage composition (by mass) of an Oreo cookie. From closely inspecting the Oreo cookie, my hypothesis was that the per cent composition of the Oreo cookie is 60% chocolate wafer and 40% cream. This hypothesis is mainly based on visuals, however since percentage

Title: Oxidation of Benzoin and Rearrangement of Benzil to Produce Benzilic Acid Abstract The objective of the lab was to produce benzilic acid from benzoin. Benzoin was successfully oxidized with nitric acid to form benzil. The percent yield of benzil was 59.26% and the melting point range was 94.1-95.5°C. The literature melting point of pure benzil is 95°C, which indicates the correct product was obtained. Benzil was then rearranged using potassium hydroxide to form benzilic

PERIOD 3 OXIDES These pages explain the relationship between the physical properties of the oxides of Period 3 elements (sodium to chlorine) and their structures. Argon is obviously omitted because it doesn't form an oxide. A quick summary of the trends The oxides The oxides we'll be looking at are: |Na2O |MgO |Al2O3 |SiO2 |P4O10 |SO3 |Cl2O7 | | | | | |P4O6 |SO2 |Cl2O | Those oxides in the top

synthesis of a wide range of materials especially metal oxides such as hematite and quartz. Hydrothermal synthesis of quartz was demonstrated several decades ago and now currently used commercially. The traditional hydrothermal synthesis method is carried out in an autoclave type reactor where an aqueous solution is heated slowly to a certain temperature and then aged for several hours or days. In the case of the formation of metal oxides, hydrothermal synthesis method is generally involve two reactions

is “’rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulphur and nitrogen oxides which combine with atmospheric water to form acids.” In Northern Europe and North America millions of trees have died because of the causes of acid rain. Some lakes contain so much acid that all the fish have died and the birds that relied on this

Since the invention of implants, titanium has been the best material of choice due to its unique biocompatibility and the titanium dioxide (TiO2) corrosion resistance - compared to other metals which release ions into the adjacent tissue and cause inflammatory process. The important role in the biomaterial surface preparation has been a major study area for many scientists to enhance the surface properties for better dental and orthopedic implant osseointegration. The very last step of surface modification

strongly that water molecules cannot separate them, and they form an insoluble ionic solid.² When copper hydroxide is heated (in reaction 3), water is released as copper hydroxide decomposes into a second insoluble compound, copper(II) oxide. Copper(II) oxide, a base, then undergoes an acid-base reaction in reaction 4 with the addition of aqueous sulfuric acid, H2SO4 . The water-soluble salt, copper(II) sulfate, CuSO4 forms. These five reactions will be performed in the laboratory and will demonstrate

Several species and organisms rely on water to survive. Some organisms use it as a source to drink and others uses water as their living environment. This experiment is to calculate many aspects of the water that surrounds Corpus Christi. Water is the key to life on Earth and thus why water is so important. According to the Lab Report water quality is the quality of water and if it is considered acceptable drinking water. Water quality consist of its chemical, physical and biological characteristics

Stoichiometry Section 11.1 What is stoichiometry? In your textbook, read about stoichiometry and the balanced equation. For each statement below, write true or false. _______true___________ 1. The study of the quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry. ________true__________ 2. Stoichiometry is based on the law of conservation of mass. _________false_________ 3. In any chemical reaction, the

Nevertheless, the use of surfactants and sonochemical methods emerge as novel and feasible alternatives to optimize the resulting solid morphological characteristics. The rare earth oxides have been synthesized by a wide variety of methods including microwave-assisted, solvothermal, sol gel, hydrothermal, solution combustion, co-precipitation etc. [7-12]. Lanthanides The lanthanide (Ln) elements comprise a unique series of metals in