2007-01-18 10:31:35 · 6 answers · asked by youngnlovely991 1 in Science & Mathematics ➔ Chemistry
phenolphthalein is used to test pH, normally used for titration to find the neutral point.
2007-01-18 10:37:52 · answer #1 · answered by Taras 2 · 0⤊ 0⤋
You have a chemical sample with a low ph factor therefore it is more of a base, like a strong soap.
According to Wikipedia: http://en.wikipedia.org/wiki/Phenolphthalein
"Phenolphthalein
strongly acidic (pH < 0)
orange
H2Phenolphthalein
acidic
no color
Phenolphthalein2−
basic
pink
Phenolphthalein(OH)3−
strong alkaline
no color"
2007-01-18 10:40:55 · answer #2 · answered by Dan S 7 · 0⤊ 1⤋
It indicates a pH greater than 8.
2007-01-18 10:34:52 · answer #3 · answered by Shayna 2 · 1⤊ 0⤋
When used in conjunction with alcohol and hydrogen peroxide, the color pink confirms the presence of blood in whatever was tested
2007-01-18 10:36:27 · answer #4 · answered by Anonymous · 0⤊ 2⤋
excess of OH ions. ie basic solution
actual point at which it turns pink is pH = 8.2
above 8.2, pink color. below 8.2, colorless
2007-01-18 10:38:59 · answer #5 · answered by Dr W 7 · 1⤊ 0⤋
Tests ph or if it is a bse
2013-10-22 12:17:51 · answer #6 · answered by pobturtle 2 · 0⤊ 0⤋