Eriochrome Black T (protonated form) produce a complex with some metal ions.
When bromophenol blue is mixed with NaOH, the solution turns blue because the pH becomes alkaline. Bromophenol blue is a pH indicator that changes color in different pH ranges. In the presence of NaOH, which is a base, the bromophenol blue changes from yellow (at acidic pH) to blue (at alkaline pH).
For titrating cobalt with EDTA, the indicator commonly used is eriochrome black T (EBT). EBT changes color from wine red to blue when the endpoint is reached during the titration process, making it suitable for detecting the formation of the Co(II)-EBT complex.
HCl is not a pH buffer as it is a strong acid that completely dissociates in solution, leading to rapid changes in pH. Buffers consist of a weak acid and its conjugate base, which can resist changes in pH by absorbing or releasing protons.
Phenol red in the medium is a pH indicator that changes color based on the pH of the solution. It helps to monitor the pH levels of the medium during cell culture experiments. Changes in color indicate changes in pH, allowing researchers to adjust the conditions accordingly.
Alkalinity measures the water's ability to resist changes in pH, while pH measures the acidity or basicity of the water. Alkalinity is a buffer against pH changes, while pH directly indicates the water's acid or base level.
The color of the EBT indicator changes from red to yellow as pH increases. EBT transitions from its acidic form to its basic form as pH rises above its pKa of approximately 7.0, causing the color change.
The behavior of Electrophoretic Mobility (EBT) changes with pH due to the alteration of the surface charge of particles in a solution. As pH increases, the ionization of functional groups on the particle surface can lead to a more negative charge, enhancing negative mobility. Conversely, at lower pH levels, these groups may become protonated, resulting in a reduced or even positive charge, which can decrease negative mobility. Thus, EBT is highly sensitive to pH variations, affecting particle interactions and movement in an electric field.
relationship between brain changes and behaviour in people with dementia
The pH depends on the ingredients.
according to me the behaviour changes with ones experience that is the age of a person. today the behaviour of consumer has changed due much awareness towards their buying behaviour changes.
The chemical commonly used to identify changes in pH is an indicator, such as litmus paper or phenolphthalein. These indicators change color in response to changes in the acidity or alkalinity of a solution, allowing for easy visual detection of pH changes.
A substance which resists changes in pH is called a buffer.
how does each stimilus changes ones behaviour
This is a pH indicator.
relationship between brain changes and behaviour in people with dementia
When organisms ferment sugars they usually produce lactic acid as a byproduct. This lactic acid production lowers the pH of the media the bacteria is grown in. The pH indicator changes the media color in response to the decreasing pH from the lactic acid production.
When bromophenol blue is mixed with NaOH, the solution turns blue because the pH becomes alkaline. Bromophenol blue is a pH indicator that changes color in different pH ranges. In the presence of NaOH, which is a base, the bromophenol blue changes from yellow (at acidic pH) to blue (at alkaline pH).