The ph of solution a is 2.4, while the ph of solution b is 9.4.
(a) what are their hydrogen-ion concentrations?
(b) how many times greater is the hydrogen-ion concentration of solution a than that of solution b?
(c) by how many orders of magnitude do the concentrations differ?

Given:

The pH of solution A = 2.4

The pH of solution B = 9.4.

Solution:

The hydrogen ion  concentration is the amount of hydrogen ions present in the given solution usually expressed in terms of moles pere litre .

(A) hydrogen-ion concentrations of the solution.

Now,

The hydrogen ion concentration of the solution A

Similarly

hydrogen ion concentration of the solution B

(b) The hydrogen ion concentration of solution A is and the solution B is

so we can conclude that the hydrogen ion concentration of solution A  is   times greater than solution B

(c) The solutions A and Solution B differ by 7 order of magnitude