March 29, 2024, 02:08:34 AM
Forum Rules: Read This Before Posting


Topic: balancing equations for precipitates  (Read 4352 times)

0 Members and 1 Guest are viewing this topic.

Offline WHITECHIC9

  • Regular Member
  • ***
  • Posts: 23
  • Mole Snacks: +0/-0
balancing equations for precipitates
« on: November 24, 2008, 03:18:33 PM »
Hi, i had a lab where we have to give the balanced equation for magnesium ion which precipitated out from adding Na2HPO4 adn then we added NaOH to make it basic. Is NaOH included in the equation? PLease help me with the products!

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7979
  • Mole Snacks: +555/-93
  • Gender: Male
Re: balancing equations for precipitates
« Reply #1 on: November 25, 2008, 01:38:34 AM »
Na2HPO4 + NaOH =
then
Mg(NO3)2+ Na3PO4
AWK

Offline NP1957

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +1/-0
Re: balancing equations for precipitates
« Reply #2 on: November 25, 2008, 03:57:38 AM »
I am just wondering where nitrate is from?

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7979
  • Mole Snacks: +555/-93
  • Gender: Male
Re: balancing equations for precipitates
« Reply #3 on: November 25, 2008, 08:16:37 AM »
Nitrates are always used in qualitative analysis.
Of course you can always use only Mg2+ but then use PO43- instead of salt
AWK

Sponsored Links