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Bromthymol Blue, when heated in a solution, indicates carbon dioxide.

If there is carbon dioxide in the solution, it will turn bright yellow (when heated).

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Why did the BTB solution in jar B stay blue?

Bromothymol blue is blue in a solution with a pH over 7,6.


Is biuret solution the same as bromothymol blue?

No, biuret solution and bromothymol blue are not the same. Biuret solution is a chemical reagent used to detect the presence of proteins, indicated by a color change to purple when proteins are present. In contrast, bromothymol blue is a pH indicator that changes color based on acidity, shifting from yellow in acidic conditions to blue in alkaline conditions. They serve different purposes in laboratory settings.


What household items contain bromothymol blue?

Bromothymol blue has no household uses.


What happened to the color of bromothymol blue turn when HCI and NaOCI are added?

When HCl is added to bromothymol blue, the solution turns yellow due to the increased acidity. When NaOCl (sodium hypochlorite) is added, the color changes to green or blue, indicating the basic pH of the solution due to the formation of hypochlorous acid.


What was the role of the water test tube in each phase?

In the phase where the bromothymol blue solution was added and the lamp was switched on, the water test tube served as a control, helping to compare the change in color of the bromothymol blue solution with that of pure water when exposed to light. In the phase where the elodea was added and the lamp was switched on, the water test tube acted as a comparison point to show any changes in the color of the bromothymol blue solution due to the presence of the plant.

Related Questions

Is bromothymol a base or acid?

The water solution of bromothymol blue is a little acidic.


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


What colour does BTB get in an alkaline solution?

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


Why doest fresh water snails containing bromothymol blue turns yellow?

Bromothymol blue turns yellow when the solution is acidic.


Why did the BTB solution in jar B stay blue?

Bromothymol blue is blue in a solution with a pH over 7,6.


What happens if you mix bromothymol with baking soda?

When bromothymol blue is mixed with baking soda, the solution turns blue due to the basic nature of baking soda. This is because bromothymol blue is a pH indicator that changes color based on the acidity or basicity of the solution it is in.


Which indicator is blue in a solution that has a pH of 5.6?

Bromothymol blue is blue in a solution with a pH around 5.6.


What happened when sulphuric acid add in bromothymol blue solution?

When sulfuric acid is added to bromothymol blue solution, the color changes from blue to yellow. This is due to the decrease in pH caused by the addition of the acid. Bromothymol blue is a pH indicator that changes color in response to changes in acidity or alkalinity.


Will Yellow Bromothymol Blue revert to Green or Blue color after 12 hours?

No. Bromothymol Blue turns yellow in an acidic solution. If it is in the same solution without any additions, it will stay blue after 12 hours or longer. If the solution is altered by adding base, then the Bromothymol Blue will turn blue or green depending on how much base is added to solution.


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 happens when you mix NaOH and Bromothymol blue?

When NaOH is added to Bromothymol blue, the solution turns blue due to the increase in pH caused by the base. This color change occurs because Bromothymol blue is a pH indicator that changes color in response to pH levels.


Is biuret solution the same as bromothymol blue?

No, biuret solution and bromothymol blue are not the same. Biuret solution is a chemical reagent used to detect the presence of proteins, indicated by a color change to purple when proteins are present. In contrast, bromothymol blue is a pH indicator that changes color based on acidity, shifting from yellow in acidic conditions to blue in alkaline conditions. They serve different purposes in laboratory settings.