A community for students.
Here's the question you clicked on:
 0 viewing
vera_ewing
 one year ago
What is the pH of a 0.025 M solution of NaOH?
A. 2.50
B. 1.60
C. 12.40
D. Cannot determine without the Kb of NaOH
vera_ewing
 one year ago
What is the pH of a 0.025 M solution of NaOH? A. 2.50 B. 1.60 C. 12.40 D. Cannot determine without the Kb of NaOH

This Question is Closed

Photon336
 one year ago
Best ResponseYou've already chosen the best response.00.025 = [OH] [OH][H+] = 1x10^14 (1x10^14)/(0.025) = 4x10^13 log(4x10^13) =12.4

taramgrant0543664
 one year ago
Best ResponseYou've already chosen the best response.1For this one you solve the same way that you normally would and add an extra step at the end since it's OH To start we use the formula: pOH=log[OH] =log(0.035) =1.602 Since it's asking for pH and not pOH we just do a simple subtraction: pH=14pOH =141.602 =12.398

vera_ewing
 one year ago
Best ResponseYou've already chosen the best response.0Thank you! That makes so much more sense now! :)

taramgrant0543664
 one year ago
Best ResponseYou've already chosen the best response.1No problem!!

Photon336
 one year ago
Best ResponseYou've already chosen the best response.0Explanation: You're given the concentration of OH which you need to use to find the pH pH = log(H) which p means take the log of something. At 25 degrees Celsius you know that the [H][OH] = 10^14 so if you know the concentration of one you know the concentration of the other.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.