December 26, 2024, 02:50:12 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: How do I determine concentration of standard solution (ksp given)?  (Read 3233 times)

0 Members and 1 Guest are viewing this topic.

Offline Kylash

  • New Member
  • **
  • Posts: 3
  • Mole Snacks: +0/-0
How do I determine concentration of standard solution (ksp given)?
« on: April 13, 2011, 04:43:10 PM »
What is the concentration of sulfide ions in a standard solution of FeS if 0.04 mol of Fe(NO3)2 is added 1.0 liters of the solution? Ksp of FeS is 8 * 10^-19.

What is the concentration of sulfate ion in a 1.0L solution of strontium sulfate to which .1 mol of Sr(CH3CO2)2 has been added? Ksp for SrSO4 is 3.2 * 10^-7.

There both kind of the same, so any assistance with EITHER of these would be greatly appreciated.
Thanks!
Logged

Online Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27887
  • Mole Snacks: +1816/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: How do I determine concentration of standard solution (ksp given)?
« Reply #1 on: April 13, 2011, 05:18:50 PM »
In both cases there are two sources of cations - one is the added salt, other is dissolving solid. You can try to use ICE table, but it is not necessary. In both cases amount of dissolved solid is negligible compared with added solution.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links