According to Arrhenius theory, acids and bases release H+ ions and OH- ions respectively in aqueous solution. However, their relative strengths are expressed in terms of pH value which is mathematically negative logarithm of H+ ion concentration. Infact, there is a scale known as pH scale which ranges from zero to 14. Solution with pH equal to 7 is regarded as neutral solution. Solution with pH less than 7 is acidic while the one with pH more than 7 is regarded as basic. It may be noted that more acidic is a solution, lesser will be its pH . The more alkaline is a solution, higher will be its pH value. Can we prepare a solution with a pH of more than 14?
According to Arrhenius theory, acids and bases release H+ ions and OH- ions respectively in aqueous solution. However, their relative strengths are expressed in terms of pH value which is mathematically negative logarithm of H+ ion concentration. Infact, there is a scale known as pH scale which ranges from zero to 14. Solution with pH equal to 7 is regarded as neutral solution. Solution with pH less than 7 is acidic while the one with pH more than 7 is regarded as basic. It may be noted that more acidic is a solution, lesser will be its pH . The more alkaline is a solution, higher will be its pH value. Can we prepare a solution with a pH of more than 14?
- A pH scale is the one that decides the nature of the solution.
- The pH value of the solution normally lies between zero to 14 at 25oC.
- pH range from 0-7 indicates acidic solution, and from 7-14 indicates basic solution, and if pH is 7 then it indicates the neutral solution.
Thus, there is no possibility of preparing a solution with a pH of more than 14 at 25oC.
- A pH scale is the one that decides the nature of the solution.
- The pH value of the solution normally lies between zero to 14 at 25oC.
- pH range from 0-7 indicates acidic solution, and from 7-14 indicates basic solution, and if pH is 7 then it indicates the neutral solution.
Thus, there is no possibility of preparing a solution with a pH of more than 14 at 25oC.
