April 18, 2024, 08:08:39 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Predicting Products  (Read 2166 times)

0 Members and 1 Guest are viewing this topic.

Offline xnotorious

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Predicting Products
« on: September 03, 2010, 12:56:17 AM »
How do i predict the products? i can balance them, just not predict the products.

BaI2 + Li2SO4

K + 02

FeSO4 + Ca
Logged

Offline MrTeo

  • Chemist
  • Full Member
  • *
  • Posts: 312
  • Mole Snacks: +31/-9
  • Gender: Male
Re: Predicting Products
« Reply #1 on: September 03, 2010, 02:40:26 AM »
1st and 3rd reaction:

Dissolving those compunds in water you get a mixture of anions and cations: the only reaction possible is the precipitation of an "insoluble" salt. Checking the Ksp values you'll see that:

(CaSO4) Ksp=2.4∙10-5
(BaSO4) Ksp=1.1∙10-10

2nd reaction:

It's simply the oxidation of an alkali metal due to oxygen. What is the only oxidation state of alkali metals?
Logged
The way of the superior man may be compared to what takes place in traveling, when to go to a distance we must first traverse the space that is near, and in ascending a height, when we must begin from the lower ground. (Confucius)

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27652
  • Mole Snacks: +1800/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Predicting Products
« Reply #2 on: September 03, 2010, 03:21:24 AM »
There is no simple answer to second reaction, as it depends on the conditions. The most obvious answer is the wrong one.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links