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What color would a bromocresol green solution be at pH 7?
Bromocresol green become yellow in acidic solutions.
What is the pka of bromocresol green?
The pKa of bromocresol green is around 4.7.
Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
Why bromocresol indicator used for sodium carbonate and HCl titration?
Bromocresol green is used as an indicator in the titration of sodium carbonate with hydrochloric acid because it changes color within the pH range of the endpoint of the titration. It turns yellow in acidic solutions (due to excess HCl) and blue in basic solutions (due to excess Na2CO3), making it suitable for detecting the equivalence point where the moles of acid have reacted completely with the moles of base.
What is mixed indicator and how it is prepare?
A mixed indicator is a combination of two or more indicators used in analytical chemistry to determine the endpoint of a chemical reaction. It is prepared by combining individual indicators in specific ratios to produce a color change at a particular pH range or equivalence point. The choice of indicators depends on the nature of the reaction and desired sensitivity to pH changes.
What color would a bromocresol green solution be at pH 7?
Bromocresol green become yellow in acidic solutions.
What is the pka of bromocresol green?
The pKa of bromocresol green is around 4.7.
Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
Why does bromocresol green indicator give a different titer value than phenolphthaline indicator?
Bromocresol green changes color over a broader pH range (3.8-5.4) than phenolphthalein (8.2-10.0), leading to a different endpoint in titration. This difference in color change can result in slightly different titer values when using the two indicators.
Why is bromocresol green a good indicator?
Bromocresol green changes color over a pH range of 3.8 to 5.4, making it suitable for acidic to neutral pH ranges. It has a distinct color change from yellow to blue, which is easily visible to the naked eye. Additionally, it is stable and has a long shelf life.
Why bromocresol indicator used for sodium carbonate and HCl titration?
Bromocresol green is used as an indicator in the titration of sodium carbonate with hydrochloric acid because it changes color within the pH range of the endpoint of the titration. It turns yellow in acidic solutions (due to excess HCl) and blue in basic solutions (due to excess Na2CO3), making it suitable for detecting the equivalence point where the moles of acid have reacted completely with the moles of base.
What is mixed indicator and how it is prepare?
A mixed indicator is a combination of two or more indicators used in analytical chemistry to determine the endpoint of a chemical reaction. It is prepared by combining individual indicators in specific ratios to produce a color change at a particular pH range or equivalence point. The choice of indicators depends on the nature of the reaction and desired sensitivity to pH changes.
How do you separate bromocresol green and methyl red?
One way to separate bromocresol green and methyl red is by using paper chromatography. The two compounds can be spotted onto a piece of chromatography paper and allowed to separate in a solvent. The different solubilities of the compounds will cause them to migrate at different rates, allowing for their separation.
How does colour changing bubble bath work?
The bubble bath has a dye added to it called Bromocresol Green which is a pH indicator, it will change colour as you change the pH of the bathwater - how acid or alkali the solution is. (Interestingly the one colour it never goes is green!)So as you dilute the bubble bath, which starts off slightly acid, the pH then gets higher and the water becomes more alkaline, making the Bromocresol Green change from orange to blue. If the water becomes acid again it will change from blue back to orange.
3 natural indicators which can be used to detect basic solution?
Examples: turmeric, methyl red, bromocresol green.
When was Universal Indicator Green created?
Universal Indicator Green was created in 1995.
Is the GFCI green light indicator on?
Yes, the GFCI green light indicator is on.
