October 09, 2024, 12:52:37 PM
Forum Rules: Read This Before Posting


Topic: solubility  (Read 4993 times)

0 Members and 1 Guest are viewing this topic.

Offline yazz

  • New Member
  • **
  • Posts: 5
  • Mole Snacks: +0/-0
solubility
« on: June 10, 2007, 09:41:08 PM »
the solubility product of SrCO3 is 1.6*10*-9. To a solution containing .175g of Sr was added solid Na2CO3 unitil the CO3 concentration was 2.50*10-6. What mass of SrCO3 was precipitated?
SrCO3 = Sr + Na2CO3
1.6*10*-9/ 2.5*10*-6=Sr
Sr=0.00064 mol/L* Molar mass to find the mass
i don't know know whether this is the right method please help.

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27809
  • Mole Snacks: +1808/-411
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: solubility
« Reply #1 on: June 11, 2007, 02:49:18 AM »
Sr=0.00064 mol/L

So far so good. But without solution volume you can't do anything more.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline yhchin

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Re: solubility
« Reply #2 on: July 04, 2007, 11:49:15 PM »
Hello I am new here.
I have a problem with my chemistry experiment. I want to ask for some opinion from you guys about the solubility of chlorine gas in ethanol.  Can anyone just show me the equation of this reaction?

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7978
  • Mole Snacks: +555/-93
  • Gender: Male
Re: solubility
« Reply #3 on: July 05, 2007, 05:41:29 AM »
SrCO3 = Sr + Na2CO3
This reaction is wrong
Sr2+ + Na2CO3 = SrCO3(s) + 2Na+
AWK

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7978
  • Mole Snacks: +555/-93
  • Gender: Male
Re: solubility
« Reply #4 on: July 05, 2007, 05:57:44 AM »
SrCO3 = Sr + Na2CO3
This reaction is wrong
Sr2+ + Na2CO3 = SrCO3(s) + 2Na+
Chlorine, of course can react with ethanol, but you are talking about solubility. Solubility is a physical process that cannot be written a chemical reaction.
AWK

Sponsored Links