Question

Briefly comment on the effect, if any, the following procedural changes would have on the observations.
NH3/H20
Experiment
blue litmus paper: had no color change, red litmus paper: turned blue, thymol blue: turned blue, methyl orange: turned orange yellow, phenolphthalein: turned magenta
Common indicators and their associated pH ranges
thymol blue: red to yellow 1.2-2.8, yellow to blue 8.2-9.1
methyl orange: red to yellow 3.1-4.4
phenolphthalein: colorless to red 8.0-9.8
Question: Briefly comment on the effect, if any, the following procedural changes would have on the observations.