Round 7: Tossup 2

By observing a change in this property, Nessler’s reagent can detect minute amounts of ammonia. This property is compared using Nessler cylinders during a namesake “analysis” that can also use simpler analogues of spectrophotometers to measure this non-absorbance property using Beer’s law. (-5[1])Ninhydrin undergoes a change in this property to detect (*) fingerprints. A change in this property for compounds such as phenol•phthalein (“fih-nawl-THAY-leen”) or bromo•thymol denotes the endpoint (10[1])of an acid-base titration. Indicators undergo (10[1])changes in this property depending on pH. (10[1])For 10 points, name this property (10[1])that can be imparted by pigments. ■END■ (10[1])

Back to tossups

Buzzes

Summary