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What is the color of phenolphthalein in solutions with pH values ranging from 2 to 6?
Phenolphthalein is colorless in acidic solutions with a pH below 8, and turns pink in basic solutions with a pH above 8. In solutions with pH values ranging from 2 to 6, phenolphthalein would remain colorless.
Why the water sample remains colorless or change to pink upon addition of phenolpthalein indiactor in total alkanilty expt?
In a total alkalinity experiment, the water sample may remain colorless or change to pink upon the addition of phenolphthalein indicator based on the pH of the water sample. If the water sample is acidic (pH below 8.3), phenolphthalein will remain colorless. If the water sample is basic (pH above 8.3), phenolphthalein will turn pink due to the presence of hydroxide ions, indicating the total alkalinity of the water.
What color does phenolphthalein turn when dipped in water?
Phenolphthalein is colorless when in contact with water or any neutral solution. It only turns pink or magenta in the presence of basic solutions with a pH greater than 8.2.
Ph range of phenophthalein and methy orange?
Phenolphthalein has a pH range of 8.2 to 10.0, where it changes color from colorless to pink. Methyl orange has a pH range of 3.1 to 4.4, exhibiting a color change from red at low pH to yellow at high pH.
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.
What is the colour of phenolphthalein above pH equals 9?
Phenolphthalein is the PH indicator used to detect the acidity of the solution. When the solution is acidic or near-neutral (PH<8.2), it's colorless; when the solution is basic (8.2<PH<10.0),it will turn from colorless to pink, and gradually turns fuchsia when PH reaches 12.0, back to colorless when overpasses 12.0.
Which of the unknown colorless solutions are acidic?
To determine if a colorless solution is acidic, you can test its pH using a pH indicator strip or a pH meter. If the pH is below 7, the solution is acidic. Common acidic solutions include hydrochloric acid, sulfuric acid, and acetic acid.
What is the indicator used for the water solution of pH of 12?
The choice is minimal for pH value that high:1,3,5, trinitrobenzene: colorless 12.0 14.0 orangealizerineYellow-R : fine yellow 10.1 12.0 blueish violet(thymolphtalein pH values: colorless 9.3 10.5 blue)
What is the color of phenolphthalein in solutions with pH values ranging from 2 to 6?
Phenolphthalein is colorless in acidic solutions with a pH below 8, and turns pink in basic solutions with a pH above 8. In solutions with pH values ranging from 2 to 6, phenolphthalein would remain colorless.
What colour should sodium sulphate be in universal indicator?
Sodium sulfate is typically colorless in universal indicator. Universal indicator is a pH indicator that changes color based on the pH of a solution, and sodium sulfate is a neutral compound that does not significantly affect the pH.
Why the water sample remains colorless or change to pink upon addition of phenolpthalein indiactor in total alkanilty expt?
In a total alkalinity experiment, the water sample may remain colorless or change to pink upon the addition of phenolphthalein indicator based on the pH of the water sample. If the water sample is acidic (pH below 8.3), phenolphthalein will remain colorless. If the water sample is basic (pH above 8.3), phenolphthalein will turn pink due to the presence of hydroxide ions, indicating the total alkalinity of the water.
Which indicator is used for titration of C2H2O4 with NaOH?
Phenolphtalein change colorless at pH < 8 to purple blue at pH > 8 to 10
What is the color of phenolphthalein indicator in acidic medium?
it goes colourless in an alkiline soloution but in an acidic substance it goes a fushia pink colour! You are WRONG! The solution will be colourless at acidic and neutral pH and goes pink above about pH 8, I hope you aren't a science teacher.
How would you prove that a given colorless liquid is an acid?
To determine if a colorless liquid is an acid, you can test its pH using pH strips or a pH meter. If the pH is less than 7, it indicates acidity. Additionally, you can conduct a chemical reaction with a known base; if the liquid reacts with the base to form salt and water, it confirms that the liquid is an acid.
Can phenolpthalein solution be used to prove that toothpaste is a base?
Phenolphthalein changes from colorless to pink in the range of pH 8.2 - 10. If toothpaste has a pH that is below this range, phenolphthalein will not indicate the basicity. if the pH is higher, which I believe it is in most (some) toothpastes, then phenolphthalein can be used, because it will turn from colorless to pink.
If phenolphthalein is added to a solution and it turns pink what is the pH of the solution?
The pH of the solution is above 8.2. Phenolphthalein changes color from colorless to pink in the pH range of 8.2 to 10.0.
What color does phenolphthalein turn when dipped in water?
Phenolphthalein is colorless when in contact with water or any neutral solution. It only turns pink or magenta in the presence of basic solutions with a pH greater than 8.2.
