Question

Which number represents a basic pH, 4 or 9? _______ Numerical Answers Expected! Answer for Blank 1:

Answer 1

9. 8 to 14 is alkaline , 1 to 6 is acidic. 7 is neutral

Answer 2

Answer : The number represents a basic pH is, 9

Explanation :

pH : It is defined as the negative logarithm of hydrogen ion and hydronium ion concentration.

`pH=-\log [H_3O^+]`

The pH range is, 1 to 14.

When the value of pH is less than 7 then the solution is acidic.

When the value of pH is more than 7 then the solution is basic.

When the value of pH is equal to 7 then the solution is neutral.

From the given information we conclude that, the pH = 4 is an acidic because the value of pH is less than 7 and pH = 9 is a basic because the value of pH is more than 7.

Hence, the number represents a basic pH is, 9