The News Review:
- Chemistry Defined in it’s Broadest Sense to try find Definitive…
- Cohesive Cougars earn A’s in chemistry
- Chemistry made easy
- Chemistry help if anyone can lend a hand
- Venable Hall dead at 83; at UNC few mourn
- Purdue lab works to improve conditions at indoor swimming pools
Chemistry Defined in it’s Broadest Sense to try find Definitive…
Free with registration – M2 Presswire – AccessMyLibrary.com – Feb 21, 2008
researchandmarkets. rgel and Stanley L. Miller this compilation of reviews and original manuscripts provides an overview of the current state of the art written by some of the eminent ‘players? in this creative domain of ‘explorative chemistry?.
Cohesive Cougars earn A’s in chemistry
Columbia Daily Tribune – Feb 21, 2008
ERICKSNof the Tribune’s staffPublished. –>Among the bestThe McKendree and Columbia College men’s basketball teams rank among the NAIA’s best in several statistical categories.
Chemistry made easy
Deccan Herald – Feb 21, 2008
Many a student nightmare originates in chemistry labs. Titration is one of them. It may be a big word but it’s a simple process to detect a solution’s potency. It requires sucking in acid through a pipette (a thin glass tube) to measure it.
Chemistry help if anyone can lend a hand
pcworld.com – Feb 21, 2008
All of them decreases rapidly as two objects move farther apart. The gravitational force between objects as light as molecules is small and generally ignored. Because molecules in the gas phase are considered to be far apart in the kinetic molecular theory these forces are ignored and the molecules are viewed as totally independent entities. Well i need to draw something that represents this but i don’t really know what i can draw. Anyone wanna lend a helping hand?edit: got it done.
Venable Hall dead at 83; at UNC few mourn
News & bserver – Feb 21, 2008
That was when the UNC system began a campaign to convince taxpayers that their university system had fallen into disrepair and needed a $2. 5 billion makeover. The sickly chemistry building became one of the campaign’s prime examples a a horrid and impossible place for cutting-edge science. comp –> Related Content… nce a professor slipped in one and wiped out in front of a class. Another time soaked ceiling tiles caved in with a class in session. Ed Samulski a longtime chemistry professor used to offer first-time visitors $5 if they could find his office within 15 minutes of entering the building. There were maps at the front door. “It was still hopeless” Samulski recalled this week. His office number typical of this sprawling prisonlike structure: 18-1D. The 80000-square-foot facility had the largest footprint on campus.
Purdue lab works to improve conditions at indoor swimming pools
innovations report – Feb 21, 2008
Swimming is the most popular recreational activity for children in the United States and anecdotal evidence suggests that children might be more sensitive than adults to the irritating effects of disinfection byproducts Beach said. Chlorination is used primarily to prevent pathogenic microorganisms from growing. "What we are trying to do is investigate the chemistry of the reactions between chlorine and the stuff that people put in swimming pools: sweat and urine" Blatchley said. "We will also investigate what happens when chlorine reacts with other contaminants including personal care products like makeup and deodorants. "The Purdue researchers analyzed swimming pool water for the presence of organic compounds generated when chlorine reacts with creatinine urea and amino acids which are contained in human urine and sweat. Measurements have allowed the researchers to hypothesize specifically how the urea creatinine and several amino acids react with chlorine to produce the disinfection byproducts. "We focused on a couple of the amino acids that we believe are representative of those that are present in sweat and urine and likely to be present at high concentrations in swimming pool water" Blatchley said… These findings also will shed light on what happens to drinking water when treated with ultraviolet radiation. "Sometimes ultraviolet radiation and chlorine are used together to treat drinking water" Blatchley said. "The chemistry is very similar in both settings so our interest in those reactions is broader than just swimming pools. "We have a pretty good understanding of what UV radiation does to microorganisms but what it does to these chemicals in water is not as well-understood. With that in mind we are investigating the reaction mechanisms as well as how fast reactions take place with exposure of these disinfection byproducts to UV radiation. "Their research is concentrating on learning how ultraviolet radiation reacts with organic disinfection byproducts that are formed as a result of chlorination of urea creatinine amino acids and other compounds. In future work the researchers are going to interview pool operators to learn more details such as how many people use the facilities and how often the water is chlorinated.