Khan Academy: 2757 products
Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.
All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …
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Organic chemistry: Reduction of carboxylic acids
How to reduce carboxylic acids using lithium aluminum hydride (and borane). Organic chemistry Sal and Jay cover topics covered in college o…
VideoFree9 minutes
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Chemistry: 2015 AP Chemistry free response 2a (part 2/2) and b
Efficiency of ethanal dehydration reaction. From 2015 AP Chemistry free response 2a (part 2/2) and 2b. Chemistry Did you know that everythi…
VideoFree6 minutes
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Organic chemistry: Curly arrow conventions in organic chemistry
Conventions for drawing curved arrows that represent the movements of electrons. Organic chemistry Sal and Jay cover topics covered in coll…
VideoFree7 minutes
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Chemistry: Orbitals
Introduction to orbitals. Relates energy shell to rows and periods in the periodic table. Chemistry Did you know that everything is made ou…
VideoFree14 minutes
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Organic chemistry: Nucleophilic aromatic substitution I
The addition-elimination mechanism. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understan…
VideoFree10 minutes
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Class 11 Physics (India): Thermodynamics part 5: Molar ideal gas law problem
Sal uses the molar version of the ideal gas law to solve for the number of moles in a gas. He also shows how to convert this answer into nu…
VideoFree8 minutes
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Physics: Electromagnetic field (loop)
Applying current in various directions to a single loop of wire. Primitive electric motor? Physics Learn about the basic principles that go…
VideoFree1 minute
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Class 11 Physics (India): Evaluating natural logarithm with calculator
Sal evaluates log_e(67) (which is more commonly written as ln(67) ) using a calculator. Class 11 Physics (India) Let's learn, practice, and…
VideoFree4
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Class 11 Physics (India): Graph interpretation word problem: temperature
When a function models a real-world context, we can learn a lot about the content from the function's graph. In this video, we consider a g…
VideoFree4
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Class 11 Physics (India): PV-diagrams and expansion work
Why work from expansion is the area under the curve of a PV-diagram. Why heat is not a state function and internal energy is a state functi…
VideoFree15 minutes
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Class 11 Physics (India): Angular velocity and speed
Angular velocity and speed Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kine…
VideoFree8
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Health and medicine: ADH effects on blood pressure
See how ADH acts on blood vessels and the kidney to raise blood pressure. Rishi is a pediatric infectious disease physician and works at Kh…
VideoFree10 minutes
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Health and medicine: Poliomyelitis pathophysiology
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree9 minutes
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Health and medicine: Preload and pressure
Find out how left ventricular end-diastolic pressure helps you make an educated guess about preload. Rishi is a pediatric infectious diseas…
VideoFree12 minutes
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Health and medicine: Infectious arthritis
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes