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Author
Series
Great Courses volume 29
Language
English
Description
Certain properties of solutions depend only on the concentration of the solute particles dissolved, not on the nature of the particles. Called colligative properties, these involve such behaviors as lowering the freezing point, raising the boiling point, and osmotic pressure. Study examples of each.
Author
Series
Great Courses volume 26
Language
English
Description
Examine solids that are held together by forces other than metallic bonds. For example, sodium chloride (table salt) exhibits a lattice structure joined by ionic bonds; molecular solids such as sugar have covalent bonds; and diamond and graphite are cases of covalent network solids, as are silicates.
Author
Series
Great Courses volume 5
Language
English
Description
Peel back the layers of the atom to investigate what's inside. Observe how electrons, protons, and neutrons are distributed, how they give an atom its identity, and how they affect its electrical charge and atomic mass. Discover the meaning of terms such as isotope, anion, and cation.
Author
Series
Understanding the Periodic Table volume 16
Language
English
Description
p-Block metals are faced with an identity crisis as they behave like metals and nonmetals at the same time. But why is this the case? Get to know the "weak" metals and why they behave the way they do. Understand how the electron configurations of elements like gallium and lead affect their behavior, discover what sets p-block elements apart from the metals of the d-block, and more.
Author
Series
Great Courses volume 48
Language
English
Description
Hydrocarbons contain only hydrogen and carbon atoms. See how some of the hydrogen atoms can be replaced with new elements and groups of elements to create compounds with new properties. These heteroatoms and functional groups form virtually unlimited combinations of organic molecules.
Author
Series
Great Courses volume 49
Language
English
Description
Get a taste of one of the favorite challenges for organic chemists - turning one organic compound into another. Focus on three types of reactions from the many used in organic synthesis: substitution, elimination, and addition. Close by considering the vital role of water in organic chemistry.
Author
Series
Great Courses volume 22
Language
English
Description
Start taking a more biologically oriented look at the foundations of organic chemistry by investigating compounds known as carbohydrates. Examine Fischer projections of their two main classes, aldoses and ketoses; learn how cyclic sugars help create disaccharides and polysaccharides used in everything from fruit preserves to body armor; and more.
Author
Series
Great Courses volume 16
Language
English
Description
Consider how atoms and molecules can create, consume, and transport the most vital commodity in the universe: energy. Practice calculating energy changes in reactions, explore the concept of enthalpy (the total heat content of a system), and learn how chemists use a device called a calorimeter.
Author
Series
Great Courses volume 31
Language
English
Description
In this final lecture on spectroscopic techniques, discover the importance of modern NMR spectrometers, which use superconducting magnets and radio receivers to collect spectra with more speed and precision (and in different ways) than other techniques. Also, get an intriguing lesson in the human element - and limitations - involved in spectroscopy.
Author
Series
Great Courses volume 23
Language
English
Description
Apply the physics of moving bodies to the countless particles comprising a gas. Observe how Graham's law links the mass of gas particles to the rate at which they escape through a small aperture, a process known as effusion. See how this technique was used to enrich uranium for the first atomic weapons.
Author
Series
Understanding the Periodic Table volume 12
Language
English
Description
Group 17 contains some of the most reactive elements on the periodic table. As you explore this group, become familiar with the halogens, a group of elements quick to combine with metals to form salts. Learn about each element in the group from most reactive to least and explore the unique set of properties that define each halogen on the table.
Author
Series
Great Courses volume 14
Language
English
Description
Begin your study of chemical reactions by investigating how chemists write reactions using a highly systematized code. Next, Professor Davis introduces the "big four" types of chemical reactions: synthesis, decomposition, single displacement, and double displacement. He also shows how to translate between measurements in moles and grams.
Author
Series
Understanding the Periodic Table volume 7
Language
English
Description
Shifting gears, spend some time on the first and smallest row of the periodic table. Consider some important questions: What do two of the oldest, lightest elements-hydrogen and helium-have in common? How do they differ? And would they make sense somewhere else on the periodic table, given their particular characteristics and behaviors?
Author
Series
Great Courses volume 6
Language
English
Description
Make sense of a crucial concept in organic chemistry: the handedness of molecules, or, as chemists call it, "chirality." Topics include the definition of chiral tetrahedral centers; the creation of stereoisomer sets via inversion of handedness; and intriguing examples of stereoisomers (including enantiomers and double-bonded stereoisomers) and their unique chiral centers.
Author
Series
Understanding the Periodic Table volume 17
Language
English
Description
The valley at the middle of the periodic table features one-third of naturally occurring elements-all of which are metals. What do they have in common and what sets them apart? Take an introductory tour of the d-block metals from the poisonous to the ultra-dense before spending the next few lessons exploring three groups of transition metals in detail.
Author
Series
Understanding the Periodic Table volume 23
Language
English
Description
The discovery of the neutron in 1932 was a germinal event in the history of science. Soon after, scientists discovered how the combination of neutrons and naturally occurring elements can create new elements that cannot and do not exist in nature. Continue your exploration of the bottom of the table by focusing on the finding, features, and functions of the transplutonic elements.
Author
Series
Great Courses volume 26
Language
English
Description
Complete your survey of organic compounds with the largest organic molecules of all: polymers. To better understand this versatile class of compounds, you'll learn about the two general classes of polymers (addition and condensation), how they're designed, and how they've changed the world (one example: vulcanized rubber).
Author
Series
Great Courses volume 43
Language
English
Description
The energy stored in chemical bonds pales next to the energy holding atomic nuclei together. Look back to the gradual unlocking of the secrets of the nucleus, the discovery of radiation emanating from elements such as uranium, and the eventual harnessing of this phenomenon for weapons, electrical power, and medical treatments.
Author
Series
Great Courses volume 2
Language
English
Description
Take a more detailed look at atomic structure and chemical bonding. What exactly drives an atom's desire to bond? What are the differences between ionic bonds, covalent bonds, and polar covalent bonds? How does the hybridization of atomic orbitals work, and how does it explain the complex geometries of carbon frameworks?
Author
Series
Great Courses volume 36
Language
English
Description
In the previous lecture, you delved into strong acids and bases - those that ionize completely in solution. In this lecture, survey weak acids and bases, zeroing in on why they only partially ionize. Practice techniques for calculating their properties and concentrations in various solutions.
