Vitamin C Lab Report

3. Carefully felt the sides of the test tube and observed the resulted chemical reaction for about 30 seconds.

The content of this section depends to a large extend on the nature of the experiment. Topics here should include a section labelled:

8. The Tubes were observed for a final 5 minutes, noting any color changes in the solutions.

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

Chemical changes occurred in five out of the eight experiments completed in this lab. Although the main focus of experiment two was

The use of selective chemical inhibitors of human cytochrome P450 enzymes is a powerful method by which the relative contributions of different human P450 enzymes to the drug metabolism can be obtained. However, the contribution of CYP2B6 in the metabolism is more challenging due to the lack of a well-established inhibitor.

11. It is then repeated for the solution of unknown concentration (A, B or C).

1. What type of macroscopic evidence for chemical change did you observe during this experiment? Give at least three different examples.

Fullerenes are molecules composed entirely of carbon in the form of a hallow sphere, ellipsoid, tube, or plane. In this experiment, the purpose is to use cyclic voltammetry to infer about the electron transfer in MOs of fullerenes and understand orbital energy and composition. The first part of the experiment is an electrochemical characterization of C60. A sample of C60 ¬is dissolved and transferred into an electrochemical cell. Cyclic voltammetry, a potential wave form is used for determination of formal redox potentials, detection of chemical reactions that precede or follow the electrochemical reaction and evaluation of electron transfer kinetics.

This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

Vitamin C also known as ascorbic acid is needed for growth and maintenance of healthy tissues, especially skin, blood vessels, bones, gums, teeth. Vitamin C aids in resistance against infection and healing of wounds. It also helps the body absorb iron from food. Vitamin C can be found in green vegetables, potatoes, tomatoes and citrus fruits such as oranges and lemon. A lack of vitamin C can cause scurvy, iron deficiency and poor wound healing. A healthy diet

Vitamin C should be taken in through diets, fruits and vegetables so that it can have its best effects and is good for our health. Vitamin C supplements are only used as addition if our bodies do not have enough Vitamin C.

Carbohydrates are the product that made up from carbon, hydrogen and oxygen. Carbohydrates are form by the combination of carbon dioxide and water molecules. The carbohydrates contain two specific functional group in it which is the hydroxyl groups and carbonyl groups.A reducing sugar is a type of sugar with is an aldehyde group.This means that sugar can act as a reducing agent.The procces of reducing sugar is isomerisation,example of reducing sugar islactose,maltose,glucose and fructose.All monosaccharides are capable of reducing other chemicals such as copper (II) sulphate to copper oxide.Beside that disaccharides such as maltose and lactose are reducing sugar,however sucrose is non reducing

Hypothesis & Rationale: Pasteurization decreases the natural level of vitamin C in orange juice because the heat may cause the chemical bonds in ascorbic acid to break down and disband.

A single service of orange juice has more than 200% of the vitamin C requirement of the body. Vitamin C, also known as ascorbic acid, functions as a primary antioxidant in the body, and it destroys or neutralizes free radicals before they can do damage to the body’s systems. Our bodies need vitamin C to stimulate other aspects of our immune system as well. Furthermore, ascorbic acid is one of the fundamental components of collagen, which is necessary to repair cells and for the growth of new tissues in the