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i posted in the "motors and generators" section but i didnt get much help so i hope this time would be better :( ? the aim of the prac is: "Design an experiment to investigate how the amplitude of a pendulum formed by a magnet and thread varies against time with or without a nearby...

I don't know how to answer these two questions: - Explain the chemistry involved in finding the concetration of ammonia - What is one procedure that can replace titration? Hope you can help and thanks!