Using Universal Indicator to measure pH C0109 скачать в хорошем качестве

Using Universal Indicator to measure pH C0109

High School Chemistry Using Universal Indicator to measure the pH of unknown solutions It's not possible to show the colours of Universal Indicators accurately in this movie clip. It is essential to look at colours produced by Universal Indicator in real life in order to gain an accurate appreciation of the technique. Nevertheless, it's not always possible for students to get into the chemistry lab and observe the true colours, so this movie clip may go some way to support their studies at school. First solutions of a weak acid and a strong acid are shown in two small beakers and their pH determined using a pH indicator chart. Next three small beakers each containing alkaline solutions are shown and the observer is asked to determine their pH from the chart.