Salts

In this video lesson, Mr. Scullion demonstrates a reacting mass problem involving sulfur. Try the problem out on your own prior to finding out the solution.

Complexometric titration (sometimes chelatometry) is a form of volumetric analysis in which the formation of a colored complex is used to indicate the end point of a titration. Complexometric titrations are particularly useful for the determination of a mixture of different metal ions in solution. An indicator capable of producing an unambiguous color change is usually used to detect the end-point of the titration.

This is Part 2. Here we take the results of the titration and work out the value of x.

Ammonia solution used to test for solutions of Mg++, Al+++, Zn++, Fe++, Fe+++ and Cu++ (Low)

This video, with the help of flash animations, shows and explains how you can determine the concentration of a sulfuric acid solution using a standard solution of ammonium hydroxide.

Rate of nucleophilic substitution of Iodo- Bromo- and Chloro- Alkanes (Alkylhalides)

Titration calculations have 6 variable. Typically 5 are given and you are required to work out the 6th. Each question in this Series is solved using a fast and simple formula-method. Try them out yourself first.

Part 9 of the acid base series for Mr. Newton's acid base equilibria series. This lesson covers some weak base calculations as well as how to figure out patterns and correlations between weak base situation and other salts containing the same ions.

This is the first of two videos covering the topic. Here I begin by looking at the self-ionization of water and at water's ability to behave as both a Bronsted acid and Bronsted base. I then move on to derive the expression for the ionic product of water and to show how it relates to the acid and base dissociation constants for weak acids and bases - and later to pH and pOH. I end by developing a flow diagram and formula sheet to help you tackle examination questions associated with the pH of alkaline solutions. In the accompanying video I take you through a wide range of examination questions that require you to apply what you've learnt in the first video.