1 Answer

Fraser Price · Answer 1 · 2017-09-28T01:16:19+0000

Answer:

the difference in hydrogen ion concentration between these two solution is :
3.9809* 10^(-3) mol/L

Step-by-step explanation:

Concentration of hydrogen ions when pH of the solution is 11.2(alkaline)

$pH=-\log[H^+]$

$11.2=-\log[H^+]$

[H^+]=6.3095* 10^(-12) mol/L

Concentration of hydrogen ions when pH of the solution is 2.4 (acidic).

$pH=-\log[H^+]'$

$2.4=-\log[H^+]'$

[H^+]'=0.39810 mol/L

In an acidic solution hydrogen ion s concentration always larger than that of of the alkaline solution.

[H^+]'>[H^+]

The approximate difference in the concentration of hydrogen ions between the two solutions:

[H^+]'-[H^+]=0.39810 mol/L-6.3095* 10^(-12) mol/L=0.0039809 mol/L=3.9809* 10^(-3) mol/L

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