food chemistry essay

It is necessary to heat the mixture in Step 2 of the procedure because without heat, the mixture is unsaturated- it can hold more solute. At a higher temperature, however, the amount of solute added in Step 1 allows for a saturated and then supersaturated solution. 2. The solution is supersaturated because there is more solute than the maximum at the temperature at the end of Step 2. There were 5 grams of solute in the 10 grams of water. According to the given solubility chart for sodium sulfate

To start off the experiment, two burets were obtained and attached to a ring stand using a buret clamp. The spouts of the burets were opened, and distilled water was added to them until all of the water flowed through the tips. This was done to rinse the burets, and to make sure that they were working properly. Next, the burets were positioned so the tops of them were below eye level. Using a long stem funnel, about 5-10 mL of the solution was added to the correct buret. A small amount had to flow

Empirical Formula and Percent Composition of Magnesium Oxide Prediction Magnesium oxide is an ionic compound (metal cation bonded to non-metal anion); therefore, we can determine its formula using the ionic charges of magnesium (Mg2+), and oxygen (O2-). To comply with the octet rule, the elements combine at a ratio of 1:1;as a result, the formula is MgO (s) . We can theoretically predict the empirical formula, and the percent composition, through this procedure: 1) Two moles of magnesium combines

Jay A. Torres With David Shbeeb and Matt Shinsky Liberty University 1003 Misty Mountain road apt.507, V.A. 24502 jtorres99@liberty.edu word count: Determination of Km and Vmax of Alkaline Phosphatase Graphs will be used with the enzyme alkaline phosphatase of the unknown in the enzyme solution to Determine Km and Vmax To Dr. Kimberly A. P. Mitchell, Editor, Liberty Journal of Cell Biology, 1971 University Blvd, Lynchburg, VA 24502. Materials and Methods Dilution: Alkaline Phosphatase The objective

The synthesis of alum was carried out adequately as evidenced by the correct changes in the appearances of the mixtures and compounds in various stages of the synthesis process as well as the appearance of the synthesized alum (Table I). Although the weight of the alum placed in both crucibles was similar, the weight of KAl(SO4)2 in the crucibles after heating was unequal relative to the weight of the alum (Table II). A plausible cause for such disparity could be the loss of alum due to the spattering

Molar Volume Lab Report  Objective: To find the molar volume of hydrogen gas at STP. Materials: Mg ribbon, thermometer, barometer, 6M HCL, eudiometer(Acid), 50 ml beaker, 400 ml beaker, cotton thread, base #7, pipet, ring stand, buret clamp, funnel, cork(hole through center vertically), cylinder full of water Procedure: The eudiometers was clamped onto the buret clamp on the ring stand. The mass of the Mg ribbon was recorded and was the bent to form a circle. A 15.0 cm long cotton thread was then

To understand this lab there is knowledge prior to the lab that was taught. A physical change is a change affecting the form of a chemical substance but not its chemical composition. Physical changes can be used to separate mixtures into their component compounds. An example of a physical change is a popsicle freezing in the freezer. A chemical change is any change that results in a new formation of chemical substances. An example of a chemical change is when rust forms on nail. The signs to look

Stoichiometry is the numerical relationship between products and reactants;from its calculations, one can predict the products when only the reactants are known or vice versa. Most calculations in chemistry use this in some way (Graves, 2013). Along with stoichiometry, dimensional analysis can also be used, and through the use of both one can calculate the moles of a substance, limiting reagents of a reaction- the substances that limit a reaction’s potential yield, substances that are in excess

When I took chemistry in the second year of high school, I went through a spiritual cleansing. I had never learned about the topic before and the idea of the arrangement of molecules and the idea behind their existence in this world brought forth a newfound fascination, almost obsession for knowing more. Since then, my love for chemistry has instilled a sense of discovery within me as well establishing a purpose for learning all similar topics in order to understand more about chemistry and its foundations

Chlorine, element No. 17 on the Periodic Table of Elements, has multiple applications, atomic number 17 , atomic symbol is Cl , atomic weight is 35.453 . It is used to sterilize drinking water and to disinfect swimming pools, and it is used in the manufacturing of a number of commonly used products, such as paper, textiles, medicines, paints and plastic, particularly PVC. Moreover, chlorine is used in the development and manufacturing of materials used in products that make vehicles lighter, from