What is the NH3 nitrogen concentration in the water?
An ammonia-selective compound electrode is used to measure ammonia in a fish tank. The procedure is to mix 100.0 mL of unknown or standard with 1.0 mL of 10M NaOH and then to measure NH3 with an electrode. The purpose of NaOH is to raise the pH above 11 so that ammonia is in the form of NH3 and not […]