you learnt in school so why do you need answers from the websit
How acid, base , and pH relates
pH is measured on a 0-14 scale. When something has a pH of 0-7 it is considered an acid. When it is from 7-14 it is a base. Therefore, something falling within the range of 4.5-5.2 is a weak acid and not a base.
pH<7 acid pH=7 neutral pH>7 base
pH range of indicator should be in the rapid pH gradient.
pH<7 acid pH=7 neutral pH>7 base
Buffers work by resisting changes in pH when an acid or base is added to a solution. They consist of a weak acid and its conjugate base, which can react with the added acid or base to neutralize it. This allows a buffer solution to maintain its pH within a certain range.
Yes, carbonic acid (H2CO3) acts as a buffer in the blood to help maintain the pH within the normal range. It can react with excess acid or base to stabilize the pH around 7.35-7.45.
pH ranges from 1 (acid) to 14 (base). As far as acceptble range, you need to make clearer what else you need to know...like pH range of blood.
The pH that results when a strong acid and strong base are mixed will depend on the moles of acid and moles of base present. One cannot predict the pH without knowing, or being able to calculate, the moles of each.
First of all it is NOT 'Ph'. It is correctly symbolized as 'pH'. The 'p' is the symbol for the negative logarithm to the base ten'. 'H' is the hydrogen ion concentration. For Acid the pH range is 1 - 6 ( The lower the number , the stronger the acid). For Water the pH is 7 (only). For Alkalis the pH range is 8 - 14 ( The higher the number , the stronger the alkali). NB. pH only ranges from 1 - 14. It does not range outside these values.
Its colour changes over a range of Ph values.
pH of 7 is neutral. there is no absolute ends to the pH scale, so an acid is anything with a pH rating of less then 7, and a base is anything greater then 7. for all practical purposes, a scale of 1-14 or sometimes 0-14 is used, but it is possible to exceed these constrainsts.