Category Archives: Chemistry

Physical Chemistry, chapter 5, sections 1 to 3 This video talks about stand thermodynamic functions of reactions, standard state, standard enthalpy of reaction, standard enthalpy of formation, and reference state. By: water_skipper … Continue reading →

Chemistry - Acids Bases (27 of 45) How to Find the [H+] and pH of Nitrous Oxide Visit http://ilectureonline.com for more math and science lectures! In this video I will find pH=? of a 0.05M solution of HNO2 (nitrous acid) Ka=4.5x10^-4. By: Michel van Biezen … Continue reading →

Physical Chemistry, chapter 8, section 1 This video covers the compressiblility factor. By: water_skipper … Continue reading →

Suns draftees T.J. Warren (left) and Tyler Ennis speak during a news conference at US Airways Center on June 27, 2014.(Photo: Cheryl Evans/azcentral sports) On nearly each scorching June weekday that a millionaire could be anywhere, Suns executives and coaches descend from their US Airways Center offices and find eight to 10 of their roster players working out or doing drills on the practice court. The Suns captured a community of chemistry and commitment last season and wanted to find a match for that in Thursday night's draft. Judging from where first-round picks T.J. Warren of North Carolina State and Tyler Ennis of Syracuse were last year, that part will be a layup. GRADES: How'd the Suns do? Their value as the 14th and 18th picks will take years to prove but their character, work ethic and ability to improve already played out to be in the position of holding up Suns jerseys on Friday. "The best type of players that are out there are the guys who love the game, love to play and are willing to work hard and get better," Suns coach Jeff Hornacek said. "We see that in these two guys." RELATED: Securing Hornacek now priority … Continue reading →

Nanoparticles, laser cleaning, and glue-eating bacteria restore valuable frescoes and paintings Low-wavelength lasers removed centuries of damaging grime from the bronzed Gates of Paradise in Florence, Italy. Credit: Wikimedia Commons The history of art conservation is almost as long as the history of art itself. MichelangelosSistine Chapelfrescoes were first restored in the mid-16th century, only decades after being painted. Water damage had caused a white potassium nitrate scale, which was treated with linseed and walnut oil. But such cosmetic solutions were sticking plasters and lacked the scientific understanding that has now revolutionised the field. Today, conservation scientists are finding innovative ways to clean and protect our cultural heritage. Joyce Townsend, a conservation scientist at theTate Galleryin London, UK, explains that all conservation projects start with a detailed assessment of the work. There is always a debate between conservators, curators and scientists thinking what is absolutely necessary to be done. Is there an option right now to do nothing at all, or is that unsafe because the object is deteriorating? As well as providing for an artworks survival, Townsend describes the basic ethical principles of any conservation process as ensuring that you do no harm to the work, and that wherever … Continue reading →

Chemistry - Law of Constant Proportions | askIITians Pankaj Singh (askIITians Faculty) explains the concept of Law of Constant Proportions with examples asked in IIT JEE and medical exams. For detailed theory, http://www.askiitians.com/iit-jee-chemis... By: askiitians … Continue reading →

Attention + Now + Trouble Maker [Dance Practice by Chemistry] By: Chemistry Maker … Continue reading →

Solubility Product, Ksp, and Solubility: Chemistry Sample Problem Sample problem to find solubility using a Ksp (solubility product) value. Visit https://sites.google.com/site/dcaulfssciencelessons/ for more! By: dcaulf … Continue reading →

Alia Bhatt And Varun Dhawan Hot Chemistry Alia Bhatt And Varun Dhawan Hot Chemistry - The trailer of the Humpty Sharma Ki Dulhania was released on May 25, 2014 and the film features Varun Dhawan as Humpty Sharma and Alia Bhatt as Kavya... By: CDS Bollywood Tweets … Continue reading →

Chemistry for a Clean World Join VERIZON in encouraging her love for STEM subjects, #InspireHerMind. To learn more, visit http://bit.ly/VerizonSTEM02 Read my story: http://wp.me/p1zHfl-1h6 *** JOIN US FOR A CLEANER... By: Clean My Space … Continue reading →