In this indicators instructional activity, students write equilibrium equations, determine the pH at the transition point of the indicator, and calculate the value of pKa. This instructional activity has 7 problems to solve.
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Chemical Changes Making Foam and Using Indicators
High schoolers are able to observe chemcial and physical changes while producing a brilliant formation of foam. They are able to experience the use of an indicator in the reaction. Students record information based on their observations.
9th - 12th Science
New Review Preparation of Natural Indicators From Plants
Did you know you can make your own pH indicator from plants? The sixth lesson in a seven part series teaches pupils to do just that. They work with the extracts of natural colors from flowers and leaves to observe color changes in...
9th - 12th Science CCSS: Adaptable
Changing Planet: Ocean Acidification - the Chemistry is Less than Basic!
A video and laboratory investigation are highlights to this lesson on acidification of ocean water due to increased atmospheric carbon dioxide. Using bromothymol blue (BTB) as an indicator, pupils analyze the amount of carbon dioxide...
7th - 10th Science