Trihydrogen cation

Ex: Simplify a Trigonometric Expression: (trig+-trig)/(1+trig) (A)

This video explains how to simplify a trigonometric expression into one trig function.

From playlist Reciprocal, Quotient, Negative, and Pythagorean Trigonometric Identities

Trigonometry 5 The Cosine Relationship

A geometrical explanation of the law of cosines.

From playlist Trigonometry

Pythagorean Trig Identity: Illustrated via Areas

From playlist Trigonometry TikToks

Trig Identities 1

The most basic trig identities

From playlist Trigonometry

Using the Pythagorean identity to verify an identity

👉 Learn how to verify Pythagoras trigonometric identities. A Pythagoras trigonometric identity is a trigonometric identity of the form sin^2 (x) + cos^2 (x) or any of its derivations. To verify trigonometric expression means to verify that the term(s) on the left-hand side of the equality

From playlist Verify Trigonometric Identities

Trigonometry 7 The Cosine of the Sum and Difference of Two Angles

A geometric proof of the cosine of the sum and difference of two angles identity.

From playlist Trigonometry

Use pythagorean identities to verify an identity

👉 Learn how to verify Pythagoras trigonometric identities. A Pythagoras trigonometric identity is a trigonometric identity of the form sin^2 (x) + cos^2 (x) or any of its derivations. To verify trigonometric expression means to verify that the term(s) on the left-hand side of the equality

From playlist Verify Trigonometric Identities

Ex: Simplify a Trigonometric Expression: (2-trig^2)/trig^2 - 1

This video explains how to simplify a trigonometric expression into one trig function.

From playlist Reciprocal, Quotient, Negative, and Pythagorean Trigonometric Identities

Trigonometric Functions: Sine, Cosine, Tangent, Cosecant, Secant, and Cotangent

Oh man, what is all this sine and cosine business? What do these things even mean?! And Greek letters now? I don't know Greek! OK friend, just relax. Understanding the trig functions is as easy as pi radians. We just make some triangles and set up a few definitions. I promise it's no sweat

From playlist Trigonometry

Chem 201. Organic Reaction Mechanisms I. Lecture 05. Carbocations

UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 05. Organic Reaction Mechanism -- Carbocations View the complete course: http://ocw.uci.edu/courses/chem_201_organic_reactions_mechanisms_i.html Instructor: David Van Vranken, Ph.D. License: Creative Commons BY-NC-SA Terms of Use:

From playlist Chem 201: Organic Reaction Mechanisms I

11. Carbocations and the Mechanism of Electrophilic Addition to Alkenes and Alkynes

Freshman Organic Chemistry II (CHEM 125B) Substition stabilizes alkenes, and addition of acids is thermodynamically favorable in acidic media. Additon to alkenes can involve free-radical, metal-catalyzed, and stepwise electrophilic mechanisms, the last via a cation intermediate. Electr

From playlist Freshman Organic Chemistry II with Michael McBride

Chem 201. Organic Reaction Mechanisms I. Lec. 06. Carbocation Stabilization by Vicinal Sigma Bonds.

UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 06. Organic Reaction Mechanism -- Carbocation Stabilization bt Vicinal Sigma Bonds View the complete course: http://ocw.uci.edu/courses/chem_201_organic_reactions_mechanisms_i.html Instructor: David Van Vranken, Ph.D. License: Cre

From playlist Chem 201: Organic Reaction Mechanisms I

Organic Chemistry 51B. Lecture 04. Alcohols, Ethers, and Epoxides Part 3.

UCI Chem 51B Organic Chemistry (Winter 2013) Lec 04. Organic Chemistry -- Alcohols, Ethers, Epoxides -- Part 3 View the complete course: http://ocw.uci.edu/courses/chem_51b_organic_chemistry.html Instructor: David Van Vranken, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://

From playlist Chemistry 51B: Organic Chemistry

Chem 201. Organic Reaction Mechanisms I. Lecture 07. Neighboring Groups.

UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 07. Organic Reaction Mechanism -- Neighboring Groups View the complete course: http://ocw.uci.edu/courses/chem_201_organic_reactions_mechanisms_i.html Instructor: David Van Vranken, Ph.D. License: Creative Commons BY-NC-SA Terms o

From playlist Chem 201: Organic Reaction Mechanisms I

The perovskite crystal structure

The perovskite crystal structure, ABO3, is incredibly important. Many important technologies such as dielectrics, ferroelectrics, and more rely on materials in this crystal structure. The structure consists of two different cations (A and B) which must combine to be a +6 charge. Commonly a

From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020

Hydrohalogenation - Alkene Reaction Mechanism

This organic chemistry video tutorial provides a basic introduction into hydrohalogenation of alkenes. It provides the reaction mechanism as well. Examples include carbocation rearrangements such as hydride shifts, methyl shifts, and the stereochemistry of the products are mentioned as w

From playlist New Organic Chemistry Playlist

Chemistry 51B: Organic Chemistry. Lecture 7

UCI Chem 51B: Organic Chemistry (Winter 2015) Lec 07. Organic Chemistry -- Conversion of Alcohols to Alkyl Halides View the complete course: http://ocw.uci.edu/courses/chem_51b_organic_chemistry.html Instructor: Susan King, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw

From playlist Chemistry 51B: Organic Chemistry

Organic Chemistry 51B. Lecture 25. Electrophilic Aromatic Substitution Part 2.

UCI Chem 51B Organic Chemistry (Winter 2013) Lec 25. Organic Chemistry -- Electrophilic Aromatic Substitution -- Part 2 View the complete course: http://ocw.uci.edu/courses/chem_51b_organic_chemistry.html Instructor: David Van Vranken, Ph.D. License: Creative Commons BY-NC-SA Terms of Use

From playlist Chem 51B, Week 10

Mass Spectrometry

This organic chemistry video tutorial provides a basic introduction into mass spectrometry. It explains how to match the correct molecular fragments with the corresponding m/z peaks in the mass spectrum. It discusses the difference between the base peak and the parent peak. Access The F

From playlist New Organic Chemistry Playlist

Arctan(1) + Arctan(2) + Arctan(3) = π

From playlist Trigonometry TikToks