PLEASE HELP! question:
a solution of hydrochloric acid has a pH of 2. how much would you have to dilute this solution to obtain a solution that has a pH of 5.

Question

PLEASE HELP! question:
a solution of hydrochloric acid has a pH of 2. how much would you have to dilute this solution to obtain a solution that has a pH of 5.

anonymous · Answer

So, 2 = p[H+] = - log10(0.01) and you are looking to dilute the solution to a pH of 5 or 5 = p[H+] = -log10(0.00001).  You want to dilute the solution from 0.01M to 0.00001M to give it a pH of 5.

anonymous · Answer

thank you.... appreciate it

anonymous · Answer

You're welcome.

anonymous · Answer

is there a specific amount as the answer or al that you said is the answer. i just want to be precise.

anonymous · Answer

It would depend on your starting volume.  This simple equation can help you figure out how much volume you need to finish with.

(Mcon) (Vcon) = (Mdil) (Vdil)