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Bromothymol blue is blue in neutral or basic solutions, and yellow in acidic solutions.

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1y ago

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What colour is bromothymol blue at the 5 pH level?

Bromothymol blue is green at a pH of 5.


Bromothymol blue a base or acid?

yes. bromothymol blue can act as a acid base indicator. becoz in acidic condition(pH:below 7) bromothymol blue is in green colour whereas in alkaline condition(pH: above 7) its colour changes into blue..


What colour is made by mixing bromothymol blue and sulphuric acid?

Mixing bromothymol blue and sulfuric acid would not result in a colour change, as sulfuric acid is a strong acid and bromothymol blue is a pH indicator that changes colour based on the acidity or alkalinity of a solution.


What will be the colour of bromothymol blue in a solution of sodium chloride in water?

Sodium Chloride solution has a pH of 7 & the Indicator color is green. Bromothymol blue indicator reflects a pH range of 3.5-9.5


Is bromothymol a base or acid?

The water solution of bromothymol blue is a little acidic.


What colour does BTB get in an alkaline solution?

In an alkaline solution, bromothymol blue (BTB) turns blue.


Colour of hydrochloric acid in bromothymol blue?

Hydrochloric acid turns bromothymol blue yellow because the acid changes the pH of the solution, causing the bromothymol blue indicator to shift its color toward the yellow end of the spectrum.


What does photosynthesis have to do with the use of Bromothymol Blue?

Bromothymol blue is an indicator which changes colour in the presence of an acid. When carbon dioxide mixes with water it produces carbonic acid (soda water). A pretty common experiment involves putting a respiring organism in water mixed with bromothymol blue, the water should turn yellow as the organism takes in oxygen and produces carbon dioxide. The indicator can be changed back to its original blue colour by removing the carbon dioxide from the water, i.e. putting in a plant to run photosynthesis - drawing out the carbon dioxide to produce oxygen.


Why doest fresh water snails containing bromothymol blue turns yellow?

Bromothymol blue turns yellow when the solution is acidic.


What colour is bromothymol blue?

Bromothymol blue is a pH indicator dye that is typically blue in alkaline conditions (pH > 7), green in neutral conditions (pH = 7), and yellow in acidic conditions (pH < 7).


Bromothyl blue and water were bubbled explain why the solution colour changed?

The solution's color changed because bromothymol blue is a pH indicator that changes color based on the acidity or alkalinity of the solution it is in. When bubbled with water, carbon dioxide from the air dissolves in the water, forming carbonic acid, which lowers the pH of the solution, causing the bromothymol blue to change color.


Colour of nitric acid in 0.1 bromothymol blue?

Nitric acid is a strong acid and will turn bromothymol blue to yellow in color because it contains protons that can react with the indicator, causing it to change color.