1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Chemistry pH problem help NaOH and HCl

  1. Feb 9, 2009 #1
    Chemistry pH problem help plz NaOH and HCl

    Calculate the pH after the following total volumes of .32M HCl have been added to 25 mL of 0.16M NaOH
    a. 0 mL c. 12.4 mL e. 12.6 mL
    b. 1 mL d. 12.5 mL f. 15.0 mL

    A. i have answered correctly but i cant seem to get the right answer for any of the others i tried putting them in mmol but it never seems to work if someone could just tell me how to do b through f i would be very pleased thank you.
    Last edited: Feb 9, 2009
  2. jcsd
  3. Feb 9, 2009 #2


    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Re: Chemistry pH problem help plz NaOH and HCl

    The exercise is a neutralization reaction. Determine which moles of NaOH or HCl is in excess. That would be the one which affects the pH. A relationship which is helpful is 14 = pH + pOH
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook