12.27

Moderators: Chem_Mod, Chem_Admin

huntercrespo1C
Posts: 31
Joined: Fri Apr 06, 2018 11:02 am

12.27

Postby huntercrespo1C » Sat Jun 09, 2018 8:28 pm

Wants to prepare 200.0 mL of a 0.025 M HCl solution but uses a 250.0 mL flask
I understand part a but where does the equation pH = -log * (200mL * .025M)/250.0M come from for part b

Jack Martinyan 1L
Posts: 32
Joined: Thu Feb 22, 2018 3:00 am
Been upvoted: 1 time

Re: 12.27

Postby Jack Martinyan 1L » Sun Jun 10, 2018 11:29 am

M1V1=M2V2

(0.025)(200)=(M2)(250)

M2= (0.025)(200)/250

M2 is the concentration of the H30+

pH=-log[H3O+]

pH=-log[(0.025)(200)/250]


Return to “Bronsted Acids & Bases”

Who is online

Users browsing this forum: No registered users and 2 guests