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What is a substance that changes color when mixed with an acid or base?
acid base indicator or pH indicatorSome examples of acid base indicators are: gentian violet, malachite green, thymol blue, methyl yellow, bromophenol blue, congo red, methyl orange, screened methyl orange, bromocresol green, methyl red, methyl purple, phenolphthalein, indigo carmine, hydrangea flowers, anthocyanin, litmus, red cabbage, and purple cauliflower.
Aerobic organisms degrade glucose producing carbon dioxide and water What acid turns the indicator yellow?
The acid that turns the indicator yellow in this scenario is carbonic acid, which is formed when carbon dioxide reacts with water. It causes the indicator to change color due to a decrease in pH levels.
What color is phenol red at an acid pH?
Phenol red is yellow at an acid pH.
Why the colour of sulphuric acid is yellow?
The yellow color of concentrated sulfuric acid is due to the presence of sulfur-containing impurities in the acid, such as sulfur dioxide and organic compounds. These impurities absorb light at certain wavelengths, giving the acid a yellow appearance. Pure sulfuric acid is colorless.
Why amino acids give yellow colour with nitric acid?
When amino acids react with nitric acid, a yellow color may be observed due to the formation of nitro compounds. Nitric acid can nitrate amino acids, leading to the production of yellow-colored nitro derivatives. The specific yellow color observed can vary depending on the amino acid present and the reaction conditions.
What is acetocarmine?
Acetocarmine is acetic acid as solvent with dissolved carmine
What are the special stains for glycogen?
periodic acid schiff best's carmine PAS_D
What is a substance that changes color when mixed with an acid or base?
acid base indicator or pH indicatorSome examples of acid base indicators are: gentian violet, malachite green, thymol blue, methyl yellow, bromophenol blue, congo red, methyl orange, screened methyl orange, bromocresol green, methyl red, methyl purple, phenolphthalein, indigo carmine, hydrangea flowers, anthocyanin, litmus, red cabbage, and purple cauliflower.
Aerobic organisms degrade glucose producing carbon dioxide and water What acid turns the indicator yellow?
The acid that turns the indicator yellow in this scenario is carbonic acid, which is formed when carbon dioxide reacts with water. It causes the indicator to change color due to a decrease in pH levels.
How do you obtain Carmine?
Obtained from the harmonic acid produced by some scaled insects, such as the cochineal and the Polish Cochineal.
What color is phenol red at an acid pH?
Phenol red is yellow at an acid pH.
Why the colour of sulphuric acid is yellow?
The yellow color of concentrated sulfuric acid is due to the presence of sulfur-containing impurities in the acid, such as sulfur dioxide and organic compounds. These impurities absorb light at certain wavelengths, giving the acid a yellow appearance. Pure sulfuric acid is colorless.
Why does adding carbon dioxide to BTB solution cause a color change?
Adding carbon dioxide to bromothymol blue (BTB) solution causes a color change because it forms carbonic acid, which lowers the pH of the solution. BTB changes color in response to pH changes, shifting from blue in a basic solution to yellow in an acidic solution. The increased acidity due to the carbon dioxide causes the solution to turn yellow.
Why amino acids give yellow colour with nitric acid?
When amino acids react with nitric acid, a yellow color may be observed due to the formation of nitro compounds. Nitric acid can nitrate amino acids, leading to the production of yellow-colored nitro derivatives. The specific yellow color observed can vary depending on the amino acid present and the reaction conditions.
What acid causes muscles to ache produced by milk?
Lactic acid causes muscles to ache
Is stomach acid yellow?
yes
Phenol red turns what color when carbon dioxide is added?
Phenol red turns yellow in the presence of carbon dioxide due to the formation of carbonic acid. This acidic environment causes the phenol red indicator to shift from its original red color to a yellow hue.
