December 23, 2024, 08:03:01 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Calculating reactions  (Read 5292 times)

0 Members and 1 Guest are viewing this topic.

Offline sbrown

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
Calculating reactions
« on: October 28, 2006, 03:52:39 PM »
I need to    Calculate how many grams of potassium iodide are necessary to completely react with 20.61 g of mercury(II) chloride.

I am not sure how to do this!!
Logged

Offline sbrown

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
calculating reaction
« Reply #1 on: October 28, 2006, 03:54:25 PM »
A reaction combines 113.4 g of lead(II) nitrate with 45.01 g of sodium hydroxide.  Calculate how much lead(II) hydroxide is formed.

Pb(NO3)2(aq)  +  2 NaOH(aq)  à  Pb(OH)2(s)  +  2 NaNO3(aq)

Logged

Offline sbrown

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
Calculate reaction
« Reply #2 on: October 28, 2006, 03:55:37 PM »
Sodium hydroxide reacts with phosphoric acid to give sodium phosphate and water.  Calculate the percent when 17.82 g of NaOH is reacted with excess phosphoric acid to yield 15.00 g sodium phosphate.

3 NaOH(aq)  +  H3PO4(aq)  à  Na3PO4(aq)  +  3 H2O(l)

Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27887
  • Mole Snacks: +1815/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Calculating reactions
« Reply #3 on: October 28, 2006, 04:17:36 PM »
Please read forum rules.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline sbrown

  • New Member
  • **
  • Posts: 4
  • Mole Snacks: +0/-0
Re: Calculating reactions
« Reply #4 on: October 28, 2006, 04:22:43 PM »
Ok and? This is not homework or anything, I am taking an online class and trying to learn this stuff and have no idea where to start
Logged

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27887
  • Mole Snacks: +1815/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Calculating reactions
« Reply #5 on: October 28, 2006, 04:30:34 PM »
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links