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pH 7 or neutral

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13y 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..


Which indicator is used for 8-6 pH?

Bromothymol blue (pH 6.0-7.6) Phenol red (pH 6.4-8.0) Neutral red (pH 6.8-8.0)


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.


What is the pH indicator used in the citrate test?

Bromothymol blue is the pH indicator used in the citrate test. It turns blue at an alkaline pH, indicating that citrate has been utilized by the bacteria.


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).


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.


Why is the btb in the beaker green?

The green color in the beaker is likely due to the presence of bromothymol blue (BTB), a pH indicator that turns yellow in acidic conditions and blue in basic conditions. The green color could indicate a neutral pH, where the yellow and blue colors are mixed.


What does brythomol blue tell you?

Bromothymol blue is a pH indicator that changes color based on the acidity of a solution. In acidic solutions, it turns yellow, in neutral solutions, it is green, and in basic solutions, it turns blue. It is commonly used in laboratories to determine the pH of a solution.


Colour of sodium hydroxide in bromothymol blue?

Bromothymol blue is a chemical indicator for weak acids and bases. The chemical is also used for observing photosynthetic activities or respiratory indicators (turns green then yellow as CO2 is added). Since dissolved O2 does not affect pH, the solution remains the same color it was when it was added (yellow for acidic, green for neutral, blue for alkaline).


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 SODIUM HYDROXIDE and Bromothymol blue?

When sodium hydroxide is mixed with bromothymol blue, the solution turns blue due to the alkaline nature of sodium hydroxide. This indicates a basic pH level.