Biology Professor Smith 27 November 2010 Analysis of a Leaf Extract Introduction: Photosynthesis occurs when proteins in plant cells absorb light. Chlorophyll, the most commonly known pigment in plants, absorbs red and blue light, while reflecting the color green. Because of this, many plants are found to be the color green. There are, however, a wide variety of plants that range in color from red to violet. This is due to the different number of plant pigments that compose a plant
Words: 1037 - Pages: 5
social-psychological process involving the activation of moral norms against harming innocent people. In a preliminary test of the model's social-psychological hypotheses, judgments about the moral obligations of industry with respect to hazardous chemicals were found to depend both on awareness of harmful consequences to people and on ascription of responsibility for those consequences to industry; government, however, was held to be morally obligated to act even if it was not responsible for the harm
Words: 4389 - Pages: 18
Forensic Chemistry Forensic Chemistry is a branch of chemistry that deals with chemical analysis of evidence found at crime sites and any other substance that may have been used during a crime. Examples would be like analyzing the weapon for DNA and fingerprints, and analyzing any substance like spit or blood that might contain the criminal's or the victim's DNA in it. Forensic Chemistry is very popular today, as it is in many famous TV shows, especially CSI, which means crime scene investigator
Words: 759 - Pages: 4
2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up, two cotton plugs soaked in two different substances (HCl and NH4OH) were inserted into the two ends of the glass tube. The substance with the lighter molecular weight value (NH4OH, M = 35.0459 g/mole) diffused at a faster rate (dAve = 25.8cm), resulting in the formation of a white ring around the glass closer to the side
Words: 2656 - Pages: 11
Mixtures and Compounds XXXXXXXX XXXXXXX XXXXXXXX SCI-110 9 May 2011 Mixtures and Compounds Describe the difference between a mixture and a compound. Chemical compounds are in every known object or substance. They are composed of two elements that combine with each other. They can also be more than two elements. Compounds are one of three forms of matter, and the other two are element mixtures. Compounds have a definite composition, as water will always consist of 88.9% oxygen and
Words: 674 - Pages: 3
Practice problems for CHE 101 final Approximate breakdown of points: Old Ch. 2: 10 Ch. 3: 15 Ch. 4: 15 Ch. 5: 15 Ch. 6: 15 Ch. 7: 15 Ch. 10: 15 New Ch. 8: 40 Ch. 9: 40 Ch. 11: 20 Final: May 3 at 11:45 am. Rooms posted on UBlearns Check your points entered on posted grade point totals. Keep all assignments.
Words: 905 - Pages: 4
Instructor: Doug Ohlendorf Paper title: Crystallographic and single-crystal spectral analysis of the peroxidase ferryl intermediate. Meharenna et al (2010) Biochemistry 49: 2984-6. Type your answers into the worksheet prior to the second class, and then edit a printed copy during the discussion. No loose sheets. Print double-sided or use a metal staple. Do NOT fold the corners. 1. What is the reaction catalyzed by CCP? Fe(III)-> Fe(IV)O/R•þ 2. What is (are) the cofactors
Words: 600 - Pages: 3
Determining the Limiting Reactant and Percent Yield in a Precipitation Reaction Objectives: • Observe the reaction between solutions of sodium carbonate and calcium chloride. • Determine which of the reactants is the limiting reactant and which is the excess reactant. • Determine the theoretical mass of precipitate that should form. • Compare the actual mass with the theoretical mass of precipitate and calculate the percent yield. Materials: Balance 0.70 M sodium carbonate solution
Words: 821 - Pages: 4
[pic] Chemistry 2423 Exam 2A [pic] O Cimene – refers toseveral isomeric compounds. The Ocimenes are monoterpenes found within varity of plants fruits. Instructor : Dr. Pahlavan ORGANIC CHEM 2423 EXAM # 2A Sample(Chapters 5,6, and7) Name:__________________ Score DIRECTIONS- Please
Words: 2193 - Pages: 9
Activity 4a: The nucleus, isotopes, and atomic mass 4.2, 4.3, 4.4 Activity 4b: The electrons and the shell model 4.2, 4.5-4.8 Unit 5: An introduction to ionic, covalent, and metallic bonding Activity 5: Conductivity and models of chemical bonding 3.4, 6.2-6.5 Unit 6: Exploring covalent compounds (molecules) Activity 6a: Molecules and lewis dot structures 6.5 Activity 6b: VSEPR theory and molecular shape 6.6 Activity 6c: Polarity, intermolecular forces
Words: 441 - Pages: 2
