November 25, 2024, 04:45:40 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: volume titrate problem  (Read 10102 times)

0 Members and 1 Guest are viewing this topic.

g5r

  • Guest
volume titrate problem
« on: October 13, 2005, 05:20:48 PM »
what volume of .1M NaOH is needed to titrate 100ml of .2M H2SO4?

This is what i have so far...
     100ml H2SO4*(.1M NaOH/.2M H2SO4)= 50ml

the answer to the problem is 400ml. what am i doing wrong.
                       
Logged

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re:volume titrate problem
« Reply #1 on: October 13, 2005, 06:16:06 PM »
First you need to write the balanced equation for the reaction between sulfuric acid and sodium hydroxide.
Logged
There is no science without fancy, and no art without facts.

Offline Albert

  • Lonely Wanderer
  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1050
  • Mole Snacks: +112/-22
  • Gender: Male
  • Half Decent Pharmaceutical Chemist
Re:volume titrate problem
« Reply #2 on: October 16, 2005, 06:52:03 AM »
[H2SO4]=0.2M V=100mL

H2SO4 + 2NaOH -> Na2SO4 + 2H2O

[NaOH]=0.1M V=xmL

Now, a little bit of calculations:

(2*0.2M*0.1L) / 0.1M =0.4L=400mL
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links