Chemical Forums

Please login or register.

Login with username, password and session length

Sponsored links

Pages: [1]   Go Down

Author Topic: ppm to mole conversion  (Read 63692 times)

0 Members and 1 Guest are viewing this topic.

poochiram

  • Guest
ppm to mole conversion
« on: November 21, 2004, 06:39:28 AM »

How to convert 37 ppm Mg into moles?
Logged

Mitch

  • In Vivo Chemist
  • Administrator
  • Sr. Member
  • *
  • Mole Snacks: +354/-81
  • Offline Offline
  • Gender: Male
  • Posts: 5025
  • "I bring you peace." -Mr. Burns
    • Chemistry Blog
Re:ppm to mole conversion
« Reply #1 on: November 21, 2004, 10:11:31 AM »

Show that you have attempt the problem before posting.
Logged
Most Common Suggestions I Make on the Forums.
1. Always start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
3. Forum Supports LaTex

AWK

  • Global Moderator
  • Sr. Member
  • ***
  • Mole Snacks: +356/-108
  • Offline Offline
  • Gender: Male
  • Posts: 4850
Re:ppm to mole conversion
« Reply #2 on: November 21, 2004, 08:25:34 PM »

ppm is a concentration unit. It cannot be converted to amount of matter (moles) directly.
You can calculate moles of substance in solution (or mixture) of known volume or mass.
Logged
AWK

kevins

  • Chemist
  • Full Member
  • *
  • Mole Snacks: +17/-6
  • Offline Offline
  • Posts: 176
  • I'm a llama!
Re:ppm to mole conversion
« Reply #3 on: November 22, 2004, 03:27:48 AM »

poochiram:

ppm = part per million

I guess you have a aqueous solution contains 37 ppm Mg

37 ppm Mg solution = 37 milligram of Mg in 1 L water.
Logged

AWK

  • Global Moderator
  • Sr. Member
  • ***
  • Mole Snacks: +356/-108
  • Offline Offline
  • Gender: Male
  • Posts: 4850
Re:ppm to mole conversion
« Reply #4 on: November 22, 2004, 04:10:46 AM »

Logged
AWK

Donaldson Tan

  • Editor, New Asia Republic
  • Retired Staff
  • Sr. Member
  • *
  • Mole Snacks: +260/-11
  • Offline Offline
  • Gender: Male
  • Posts: 3177
    • New Asia Republic
Re:ppm to mole conversion
« Reply #5 on: December 26, 2004, 12:31:41 PM »

ppm is a mass fraction. it is similar to percentage where u multiply the fraction by 100%. In ppm case, u multiply by 1 million.

ppm of a solute = (mass of solute) / (mass of solvent) x 106

37ppm of Mg tells u every million kg of solvent corresponds to 37kg of Mg. Given this information, you should above to work out its molar concentration by converting the required mass to moles.
« Last Edit: December 26, 2004, 12:33:35 PM by geodome »
Logged
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006
Pages: [1]   Go Up
 

Mitch Andre Garcia's Chemical Forums 2003-Present.

Page created in 0.056 seconds with 23 queries.