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Which of the unknown colorless solutions is (are) acidic
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∙ 15y ago
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Why testing with phenolphthalein would not show weather the solution is acidic or neutral?
Phenolphthalein turns colorless in acid solutions and very strong base solutions.
Can reagent bromthymol blue or phenolphthalein could be considered to be an acid indicator?
Bromthymol blue is yeloww in acidic solutions, penolphthalein is colorless.
What happens when phenolphthalein mixes with saliva?
Phenolphthalein is a pH indicator that turns pink in basic solutions, and colorless in acidic solutions. Normal pH of saliva ranges between 6.2 (acidic) and 7.4 (basic), with 7 being neutral pH. So, the answer is, "it depends." Is the saliva acidic, or basic?
What is indicator which has no color with the acidic medium?
Phenolphthalein and other indicators which themselves are weak acid show a colour change in basic medium (between pH value 7.1 to 14) so in acids they remain unchanged.
What more acidic of two solutions has?
The more acidic of two acidic solutions has more H+ ions per liter.
Why we use phenopthline as indicator for determining theconcentration of oh?
Phenolphthalein change the color from pink in basic solutions to colorless in acidic solutions.
Why testing with phenolphthalein would not show weather the solution is acidic or neutral?
Phenolphthalein turns colorless in acid solutions and very strong base solutions.
What is the color of phenol red at acidic pH?
Very strong acid solutions that have phenolphthalein added to them turn orange, but in general acidic solutions with phenolphthalein are colorless. If the solution is titrated to slightly basic (pH > 8.2) it will turn pink. Note that in extremely basic solutions (pH > 13) it will revert to colorless again.
Can reagent bromthymol blue or phenolphthalein could be considered to be an acid indicator?
Bromthymol blue is yeloww in acidic solutions, penolphthalein is colorless.
What happens when phenolphthalein mixes with saliva?
Phenolphthalein is a pH indicator that turns pink in basic solutions, and colorless in acidic solutions. Normal pH of saliva ranges between 6.2 (acidic) and 7.4 (basic), with 7 being neutral pH. So, the answer is, "it depends." Is the saliva acidic, or basic?
Explain the work of phenophthaline and litmus paper?
It is an acid - base indicator. Often used in titrations, it turns colorless in acidic solutions and pink in basic solutions.. litmus paper color... Red in acidic solution n blue in alkaline solution
What does phenolphthalein mean in science?
Phenolphthalein is a chemical compound with the formula C20H14O4. It is coloured, and the colour changes in relation to the acidity of it environment. It turns colorless in acidic solutions and pink in basic solutions.
What is pherolpthalein indicator?
Phenolphthalein (3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one) is a pH indicator or an indicator in volumetry; the color is pink in basic solutions and is colorless in acidic solutions.
How will Phenolphthalein help you test for unknown substances?
phenolphthalein turns pink when basic solution is added to it but remains colorless in case of neutral and acidic solution
What is indicator which has no color with the acidic medium?
Phenolphthalein and other indicators which themselves are weak acid show a colour change in basic medium (between pH value 7.1 to 14) so in acids they remain unchanged.
What more acidic of two solutions has?
The more acidic of two acidic solutions has more H+ ions per liter.
Are alkaline solutions Acidic?
No, alkaline and acidic are exact opposites.
