Learn the basics about Indicators, more specifically for acid and bases. An indicator is a large organic molecule that works somewhat like a " color dye". Find out more in this video! This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY
How do you work out how safe or dangerous a chemical or some other substance is? This week's Risk Bites takes a look at chemical safety, and estimating health risk from chemical exposure. This week's Risk Bites team: David Faulkner (post-production) Andrew Maynard (all the other stuff) Risk Bite
Click here to see more videos: https://alugha.com/FuseSchool The laws of indices make complex sums involving powers much easier to handle. There are 6 laws we need to know and understand: how to multiply and divide with indices, raising a power to a power, what a power of 0 means, negative indices
Click here to see more videos: https://alugha.com/FuseSchool In this video, we are going to look at what happens with negative indices and fractional indices. You should already know the other 4 ‘Laws of Indices’. But if you have forgotten, have a look at them first. For negative indices, we drop w
Part 3 on acid-base titrations. Explanation of the indicator GGW and the calculation of the turnover area Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
The pH value calculation for strong acids is described. In the end, also for strong bases. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
How do you know if the chemicals in the stuff you use and eat are safe? Only a small fraction of the thousands of chemicals in use today have been thoroughly tested for safety. Part of the problem is that how we test chemicals now is slow, expensive, and relies an awful lot on animal testing. How
Learn the basics about the pH scale, universal indicator and litmus paper. Indicators tells if something is acidic, alkaline or neutral. Indicators are substances that show different colours when they are in acidic or alkaline conditions. Litmus paper is a simple indicator that tells us whether so
The pH value calculation for weak acids (and bases) is explained. This is more demanding than with strong acids and bases. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Part 4 on acid-base titrations. According to which criteria are acid-base indicators used in titrations? Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
This screencast discusses the mathematical derivation of pH and pOH. The ionic product of the water is decisive for this. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
Using methyl orange as an example, the function of acid-base indicators is briefly explained. At the end, the different colours are discussed. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugha AI.
