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Topic: Base (chemistry)


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In the News (Sun 21 Apr 19)

  
  SIUC - CHEM140B - Study Guide
Distinguish a nucleoside (base+ sugar) from a nucleotide (base+ sugar+ phosphate).
Understand that enzymes are extremely specific and efficient catalysts, and understand that this is due to several factors: proximity effects, orientation effects, acid base catalysis and strain.
Based on this, be able to analyze the energy released from the complete burning of a mole of glucose in living organisms..
www.science.siu.edu /chemistry/chem140b/study-guide.html   (0 words)

  
 Acids and Bases in the Education Links Database.
acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water.Acids: Any compounds that react with bases to form a salt and turn blue litmus red.
Bases: Compounds that react with acids to form a salt and turn red litmus blue.
One purpose of this lesson is for you to become familiar with many aspects of acids and bases.
gotoscience.com /Chemistry/Acids_and_Bases/education_links.html   (399 words)

  
  Chemistry: Acids and Bases
This is because the conjugate base of a strong acid is very weak and cannot undergo hydrolysis.
An acid-base titration is when you add a base to an acid until the equivalence point is reached which is where the moles of acid equals the moles of base.
For the titration of a strong base with a weak acid, the equivalence point is reached when the pH is greater than seven (7).
www.shodor.org /unchem/basic/ab   (1233 words)

  
  Learn more about Chemistry in the online encyclopedia.   (Site not responding. Last check: )
Chemistry is the study of the atomic building blocks of nature, how they combine and their combinations which form the solids, liquids, and gases that make up most forms of matter.
Organic chemistry, which underlies biochemistry and polymer chemistry and is the study of carbon-containing molecules.
Often, discoveries in chemistry are made by physicists, biologists, chemical engineers or pharmacists.
www.onlineencyclopedia.org /c/ch/chemistry.html   (586 words)

  
 [No title]   (Site not responding. Last check: )
In chemistry, a base is a compound that is the opposite of an acid in the sense that it will neutralize an acid.
Common bases include compoundss such as some metal oxides and hydroxides, and ammonia.
The amino group (NH2) acts as a base by accepting a H+ ions from the solution.
www.wikiwhat.com /encyclopedia/b/ba/base__chemistry_.html   (146 words)

  
 Base (chemistry)
A base is a chemical compound that will neutralize an acid and form a salt + water.
Bases are typically water-soluble and bitter tasting and always have a pH greater than 7 in solution.
A base is able to take up a proton from an acid or able to give up an unshared pair of electrons to an acid.
encyclopedia.codeboy.net /wikipedia/b/ba/base__chemistry_.html   (359 words)

  
 Department of Chemistry at McMaster: Undergraduate Courses
An introduction to the chemistry of monofunctional aliphatic and aromatic compounds.
Chemistry 2OA3 and Chemistry 2OB3 are a sequence of introductory courses in organic chemistry for scientists not majoring in chemistry.
Chemistry 3FF3 is a study of the organic chemistry of biological molecules, with a special emphasis on carbonyl chemistry.
www.chemistry.mcmaster.ca /courses   (1436 words)

  
 Encyclopedia :: encyclopedia : Analytical chemistry   (Site not responding. Last check: )
Analytical chemistry is the analysis of material samples to gain an understanding of their chemical composition and structure.
In this method a known quantity of the element or compound under study is added, and the difference between the concentration added, and the concentration observed is the amount actually in the sample.
Analytical chemistry research is largely driven by performance (sensitivity, selectivity, robustness, linear range, accuracy, precission, and speed), and cost (purchase, operation, training, time, and space).
www.hallencyclopedia.com /Analytical_chemistry   (866 words)

  
 Truman Courses
Principles of general inorganic chemistry, including properties of matter, dimensional analysis, fundamentals of stoichiometry, interpretation of the periodic table, nomenclature and introduction to solution chemistry and commonly used concentration units.
Continuation of study of organic chemistry: alcohols, aldehydes and ketones, carboxylic acids, functional derivatives of carboxylic acids, O, N and S containing compounds, heterocyclic compounds, spectroscopy; laboratory emphasis on organic synthesis and spectroscopic analysis.
Survey of organic chemistry including nomenclature and reactions of major functional groups essential to biochemistry and an introduction to the structure and function of biomolecules, and the metabolism of proteins, lipids, and carbohydrates.
www.trumancollege.cc /coursecatalog/courses.php?DisciplineNo=073&DisciplineCategory=1   (776 words)

  
 Acid-Base Chemistry - Neutralization, Strengths of acids and bases, Brønsted-lowry theory
For weak acids and bases, partial ionization is a dynamic equilibrium between unionized molecules and its ion, as indicated by the double arrow in equation (7).
The Brønsted-Lowry acid-base definitions are based on the amphiprotic properties of water: Water is capable of acting as both a hydrogen ion donor and a hydrogen ion acceptor, depending on the acidic or basic properties of the dissolved substance (equations 9 and 10).
All Arrhenius and Brønsted-Lowry acids and bases are Lewis acids and bases.
www.chemistryexplained.com /A-Ar/Acid-Base-Chemistry.html   (2645 words)

  
 The educational encyclopedia, inorganic chemistry, acids and bases
Acid and base pH tutorial acids are generally a class of substances that taste sour, such as vinegar, which is a dilute solution of acetic acid.
Acids and bases an acid is a substance that produces H
Acids and bases acids taste sour, are corrosive to metals, change litmus red, and become less acidic when mixed with bases, bases feel slippery, change litmus blue, and become less basic when mixed with acids
www.educypedia.be /education/chemistryacids.htm   (608 words)

  
 Acids and Bases
In a similar vein, the strength of a base is related to the ease with which it functions as a source of hydroxide ions in aqueous solution: strong bases are good sources of hydroxide ions in aqueous solution and weak bases are not.
Most of the strong bases commonly used in aqueous solution are ionic hydroxides that already have the hydroxide ion present, and so need only dissolve to dissociate and liberate their hydroxide ion.
Thus, during the course of the reaction in Figure 1.8, the acid (hydrogen chloride) is converted to its conjugate base (chloride ion), while the base (methanol) is converted to its conjugate acid (methyloxonium ion).
www.uwec.edu /lewisd/Chem321-0015/Acid-Base/Acid.htm   (2612 words)

  
 SparkNotes: Titrations: Acid-Base Titrations
In acid-base chemistry, we often use titration to determine the pH of a certain solution.
An indicator is an acid or base whose conjugate acid or conjugate base has a color different from that of the original compound.
The titration of a base with an acid produces a flipped-over version of the titration curve of an acid with a base.
www.sparknotes.com /chemistry/acidsbases/titrations/section1.html   (711 words)

  
 Acids and Bases
The chemistry of acids and bases is the chemistry of reactions in which protons are transferred.
The approach taken by Arrhenius with acids and bases was in accordance with his general approach to substances in aqueous solution.
The Lewis definitions are that an acid is an electron-pair acceptor and a base is an electron-pair donor.
www.chemistry.co.nz /acids_and_bases.htm   (860 words)

  
 Nobel Prize for Chemistry Encyclopedia Article @ LaunchBase.net (Launch Base)   (Site not responding. Last check: )
This is a list of Nobel Prize laureates in Chemistry from 1901 to the present day.
"for his investigations into the disintegration of the elements, and the chemistry of radioactive substances"
"for his research and inventions in agricultural and nutrition chemistry, especially for his fodder preservation method"
www.launchbase.net /encyclopedia/Nobel_Prize_for_Chemistry   (1239 words)

  
 Truman News Full Story
Not that the Truman College assistant professor of chemistry is asking for fresh, but if anyone out there has sterile gallstones (you keep yours, of course), he'd like to use them to show his students how to extract cholesterol.
In sharing that understanding he's liable to use a couple drops of methanol and a spark igniter to fire an empty film canister down the hall, thereby introducing the concepts of chemical reactions, conservation of mass and conservation of energy.
He is also developing a course on the chemistry of food and cooking for non-science majors and recently led a workshop on teaching techniques for Chicago Public Schools teachers.
www.trumancollege.cc /news/fullstory.php?StoryID=1069   (657 words)

  
 Berry College-Chemistry Curriculum
Concentration II chemistry is focused toward pre-medicine students
An overall grade-point average of 3.0 and a chemistry grade-point average of 3.5.Completion of four hours of advanced chemistry in addition to the 40 hours of chemistry for concentration I. For concentration II, CHM 411 in addition to the 36 hours of chemistry.
The student in chemistry honors must complete an original investigation of a problem in chemistry, usually related to the research of a chemistry faculty member, and present an acceptable thesis; and perform acceptably on a comprehensive examination in chemistry.
www.berry.edu /academics/science/chemistry/curriculum/curriculum.asp   (502 words)

  
 Chemistry help, high school chemistry, college chemistry, chemistry tutorial, chemistry
The pages on this website are the chemistry lecture notes, including charts and diagrams, that I have developed over the past several years for teaching high school chemistry and college chemistry.
These chemistry lecture notes include the entire curriculum that is normally covered in high school chemistry and the first two semesters of college chemistry.
To get chemistry help in any subject area of chemistry, just click on one of the buttons on the left, and then click through to each of the screens for that subject area.
www.chemistrylecturenotes.com /index.html   (326 words)

  
 Chemistry Course Descriptions - Southern State Community College
A variety of chemistry related topics will be covered with laboratory exercises designed to complement the lecture.
A course designed to give the student hands-on laboratory experience in the concepts of Organic Chemistry 202 and the use of experimental apparatuses and techniques in the practice of organic chemistry.
Experiments will generally cover experimentally the concepts studied in Organic Chemistry 202 including 1,2 and 1,4 additions and Diels-Alder cycloaddition of the conjugated dienes; Friedel-Crafts, nitration, and other electrophilic substitution reactions of the aromatic ring; oxidation of alcohols; epoxidation of alkenes; preparation and reaction of organometallic compounds; the aldol condensation; and infrared and UV/visible spectrophotometry.
www.sscc.edu /Academics/course_desc/chemistry.htm   (934 words)

  
 Acid Base Reactions   (Site not responding. Last check: )
A convention in acid-base chemistry is to treat the molar concentration of water as a constant.
Likewise the strength of a base is determined by the extent to which it accepts a proton in the presence of a common acid such as water.
Strong bases dissociate completely such that if BOH in equation [5.16] is a strong base, the reaction goes completely to the right and [BOH] essentially equals zero (this can be demonstrated in a similar manner to example 5.5).
www.ce.udel.edu /~cawalker/AcidBase.html   (3800 words)

  
 Chemistry At Iowa State University   (Site not responding. Last check: )
Principles of chemistry and properties of matter explained in terms of modern chemical theory with emphasis on topics of general interest to the engineer.
Students taking a two-semester physical chemistry sequence are advised to take 324 first: in the spring semester, a molecular-based section of this course, stressing statistical thermodynamics, is offered for which knowledge of 324 is useful.
For students working with lasers and optics; stimulated adsorption and emission based on the classical electron oscillator model; population inversion, laser amplification; laser pumping; oscillation and cavity modes; laser beam characterization; linear propagation; design of laser resonators, ray and wave optics; nonlinear optics.
www.chem.iastate.edu /courses.html   (1740 words)

  
 americanchemistry.com : American Chemistry Council
The American Chemistry Council represents the companies that make the products that make modern life possible, while working to protect the environment, public health, and the security of our nation.
ACC believes that access to a reliable, affordable supply of energy — especially natural gas — is vital to chemical makers, to the future of the American manufacturing base and to the health of the U.S. economy as a whole.
Chemistry sponsors independent research that develops new scientific methods to better understand the potential risks to humans and the environment from exposure to chemicals.
www.americanchemistry.com /s_acc/sec_about.asp?CID=6&DID=9   (0 words)

  
 Digitalfire CeramicMaterials.Info Technical Ceramic Articles Database
This is a frit based boron base glaze that is easily adjustable in thermal expansion, a good base for color and a starting point to go on to more specialized glazes.
Glaze chemistries for each type of glaze have a typical look to them that enables us to spot ones that are non-typical.
In ceramics color is often a matter of chemistry, that is, the host glaze must be compatible and have a sympathetic chemistry for the stain being added.
www.ceramic-materials.com /cermat/education   (0 words)

  
 Nitrogen-Based Chemicals – Web Listings
The production and sale of nitrogen based chemicals is highly synergistic with the fertilizer production business taking advantage of the same production...
Yara has a strong position in industrial markets in Europe as a supplier of nitrogen based chemicals and is the leading supplier of liquid CO2.
Based in Sioux City, Iowa, the company and its partners have the manufacturing capacity to produce more than 8 million tons of nitrogen-based chemicals,...
www.business.com /directory/chemicals/commodity_chemicals/nitrogen_compounds/weblistings.asp   (559 words)

  
 Chemistry Set, Chemistry Sets, Chemistry Kits, Chemistry Kit, Science for Kids
The CHEM C3000 chemistry kit from Thames & Kosmos is the ultimate chemistry set.
With the Chemlab 1100 chemistry kit you will be able to perform over 1100 experiments and procedures.
With the Chemlab 500 chemistry kit you will be able to perform over 500 experiments and procedures.
www.naturesodyssey.com /chemistry-sets-kits-c-7.html   (597 words)

  
 CramPuppy - Free Revision Notes - Ap - Chemistry - Acid Base
Introduction Svante Arrhenius was one of the towering giants of chemistry in the years surrounding the turn of the century.
Antoine Lavoisier His basic idea was that acidity was caused by the presence of oxygen in the compound.
The word acid and alkaline (older word for base) are derived from direct sensory experience.
www.crampuppy.com /1/ap/chemistry/acid-base   (0 words)

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