The van 't Hoff factor i (named after Dutch chemist Jacobus Henricus van 't Hoff) is a measure of the effect of a solute on colligative properties such as osmotic pressure, relative lowering in vapor pressure, boiling-point elevation and freezing-point depression. The van 't Hoff factor is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass. For most non-electrolytes dissolved in water, the van 't Hoff factor is essentially 1. For most ionic compounds dissolved in water, the van 't Hoff factor is equal to the number of discrete ions in a formula unit of the substance. This is true for ideal solutions only, as occasionally ion pairing occurs in solution. At a given instant a small percentage of the ions are paired and count as a single particle. Ion pairing occurs to some extent in all electrolyte solutions. This causes the measured van 't Hoff factor to be less than that predicted in an ideal solution. The deviation for the van 't Hoff factor tends to be greatest where the ions have multiple charges. (Wikipedia).
Building a Van De Graaff HIGH VOLTAGE Generator
Who doesn’t love big hair raising ARCS?! Van De Graaff generator with its balls of thunder is the king of static! You can easily make your own. It would be pretty awesome if you support ElectroBOOM at Patreon: http://patreon.com/electroboom My tee-shirts: http://teespring.com/stores/ele
From playlist Electronics
Van de Graaff Demonstrations and Explanations
Van de Graaff generator demonstration and explanations. I do: - the hair raising demonstration, where you put your hand on the van de graaff's dome and your hair rises up, - flying pie plates, where a stack of pie plates sitting on the dome fly off, one-by-one, - flying strings or toilet p
From playlist Electronics Projects
Van de Graaff Faraday Cage Science Experiment
Van de Graaff generator experiment to test the faraday cage effect of the Van de Graaff dome. In my first How to Make a Van de Graaff Generator video I didn't put the whole top part of the VDG inside the dome, as is normally done. Instead I just ran the wire from the brush into the dome. A
From playlist Van de Graaff Generators
Lec 16 | MIT 5.60 Thermodynamics & Kinetics, Spring 2008
Lecture 16: Temperature, pressure and Kp. View the complete course at: http://ocw.mit.edu/5-60S08 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.60 Thermodynamics & Kinetics, Spring 2008
Albert Einstein, Holograms and Quantum Gravity
In the latest campaign to reconcile Einstein’s theory of gravity with quantum mechanics, many physicists are studying how a higher dimensional space that includes gravity arises like a hologram from a lower dimensional particle theory. Read about the second episode of the new season here:
From playlist In Theory
Molar Mass From Osmotic Pressure - Molarity & Van't Hoff Factor - Chemistry Problems
This chemistry video tutorial explains how to calculate the molar mass from osmotic pressure. Given the osmotic pressure and the van't hoff factor, you need to calculate the molarity of the solution which can help you to determine the number of moles of solute in the solution if you know
From playlist New AP & General Chemistry Video Playlist
Rigidity for von Neumann algebras – Adrian Ioana – ICM2018
Analysis and Operator Algebras Invited Lecture 8.5 Rigidity for von Neumann algebras Adrian Ioana Abstract: We survey some of the progress made recently in the classification of von Neumann algebras arising from countable groups and their measure preserving actions on probability spaces.
From playlist Analysis & Operator Algebras
Why Does A Potato Battery Work Better Than A Lemon Battery?
Back in 1st Grade I made a potato battery as a school project. I didn't really give it much thought then, but now revisiting it, I realized how complex and amazing electrochemistry is! Thank you so much for watching this video! If you would like to suggest a video idea please leave it in
From playlist Potato Collaboration
Awesome physics demonstrations!!! The electric field of Van de Graaff (science experiments)!
Physics (la physique)(science experiments)
From playlist WAVES
37. Proving the Configuration of Glucose and Synthesizing Two Unnatural Products
Freshman Organic Chemistry II (CHEM 125B) Modern spectroscopic tools show not only the constitution, configuration, and conformation of glucose but also how it interconverts between isomeric hemiketal pyranose rings. One of mankind's great accomplishments was determinining its constitut
From playlist Freshman Organic Chemistry II with Michael McBride
MijnOverheid Toepassingsmogelijkheden
Korte video over de toepassingsmogelijkheden van MijnOverheid.nl De portal die iedereen kan vinden op www.mijnoverheid.nl
From playlist awareness
General Chemistry 1B. Lecture 13. Physical Equilibrium, Pt. III.
UCI Chem 1B General Chemistry (Winter 2013) Lec 13. General Chemistry Intermolecular Forces -- Physical Equilibrium -- Part 3 View the complete course: http://ocw.uci.edu/courses/chem_1b_general_chemistry.html Instructor: Donald R. Blake, Ph.D. License: Creative Commons BY-NC-SA Terms of
From playlist General Chemistry 1B
XTC op een festival, Bastiaan vraagt het aan bezoekers | Drugslab Extra
In deze video gaat Bastiaan Rosman naar een festival om in gesprek te gaan met recreatieve xtc-gebruikers. Hoeveel gebruiken ze? Combineren ze met andere drugs? En hoe zit het met hun kennis over xtc? Bastiaan zoekt het uit. NIEUWSGIERIG NAAR EEN DRUG? Laat ons weten in de comment sectie
From playlist Extra
Quinine and the Birth of the Dye Industry
As we just learned, the 19th century brought about the practice of isolating compounds with medicinal properties from their natural sources, such as a variety of alkaloids. But one such alkaloid deserves its own chapter in this story, and that is quinine. This compound is found in the bark
From playlist The History of Drugs
Correlated states in van der Waals heterostructures by Abhay Narayan Pasupathy
DISCUSSION MEETING NOVEL PHASES OF QUANTUM MATTER ORGANIZERS: Adhip Agarwala, Sumilan Banerjee, Subhro Bhattacharjee, Abhishodh Prakash and Smitha Vishveshwara DATE: 23 December 2019 to 02 January 2020 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Recent theoretical and experimental
From playlist Novel Phases of Quantum Matter 2019
Lec 34 | MIT 5.111 Principles of Chemical Science, Fall 2005
Kinetics (cont.) (Prof. Catherine Drennan) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Transformations of Graphs A Level Maths Year 1- STRETCHES Along y-axis
More graph transformations for new A level maths year 1. This time, stretches along the y axis which come from transforming f(X) to after(X).
From playlist AS Level Maths Pure - AQA, Edexcel and OCR MEI
Tv Reclame van de De Belastingdienst Telsell parodie
From playlist awareness