It is important to know the PH of various substance so as to prevent damage to the human beings and certain materials. The knowledge of PH is also important in environmental and water analysis.
This is necessary only for very concentrated acids or bases.
It is not necessary to increase the pH before shocking a pool. However, adjusting the pH to the correct range (7.2-7.6) after shocking is recommended for optimal results.
Low pH(HCl) amylase incubated at 100c
An indicator is not necessary; but if you want phenolphthalein is colorless at pH=7.
Pepsin works best in acidic environments and it's optimal pH (the pH at which it works best) is 2.0
I do, because I have a Hot Tub, and maintaining a proper Ph is necessary for proper maintenance.
This is necessary only for very concentrated acids or bases.
A pH meter must be standardized because it measures relative potentials and thus relative pH. It is necessary to know to what the measurement is relative. A standard must be measured and the meter set to the known value for this standard. The pH values of other solutions are then measured relative to this standard.
By adding the necessary reagent, acidic or basic.
Between 6.5 and 7.5.
It is not necessary to increase the pH before shocking a pool. However, adjusting the pH to the correct range (7.2-7.6) after shocking is recommended for optimal results.
Adjusts pH upward. Sodium hydroxide can also be used if necessary--for large pH shifts or very large batches.
When canning, the pH does not kill botulism. Rather, a pH less than 4.6 is needed to prevent botulism from growing. If you are canning foods with a pH at or over 4.6, a pressure canner is needed to completely kill botulism.
No, blood is slightly basic with a pH around 7.35-7.45. This pH range is necessary for the body to maintain proper functioning and support enzyme activity.
No, it is not always necessary to adjust the pH to neutral before adding polymers. Some polymers can work effectively in a wide range of pH levels. However, certain polymers may require specific pH conditions for optimal performance, so it is important to follow the manufacturer's recommendations.
With a pH meter or pH paper. Other indicator dyes (e.g. litmus, phenolphthalein) may be used if it is not necessary to determine the exact numerical pH value.
The pH of the stomach is typically around 1.5-3.5, which is very acidic. This acidity is necessary for the digestion of food and to kill bacteria that may be present in the stomach.