November 01, 2024, 04:17:55 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: a ceramic contains 23 mol% MgO and the rest silicon dioxide  (Read 3456 times)

0 Members and 1 Guest are viewing this topic.

98offroadZR2

  • Guest
a ceramic contains 23 mol% MgO and the rest silicon dioxide
« on: January 25, 2006, 07:08:20 PM »
what is the wt% MgO in the ceramic, what is the mol% Si in the ceramic, what is the O/Si ratio in mol/mol in the ceramic


How do i go about solving this
Logged

Offline Bakegaku

  • Full Member
  • ****
  • Posts: 269
  • Mole Snacks: +20/-5
  • Gender: Male
  • Hydrogen peroxide is my miracle cure to everything
Re:a ceramic contains 23 mol% MgO and the rest silicon dioxide
« Reply #1 on: January 27, 2006, 10:19:56 PM »
To find the weight percentage of MgO, you'd look up the molar mass of MgO and then multiply that by the percentage of MgO moles in the ceramic.  (converting percentage into a decimal, of course)  Do the same for SiO, add the numbers, then divide the number you got for MgO by the sum of the two numbers.
Logged
"True knowledge exists in knowing that you know nothing"
-Socrates

"I see, I forget.  I hear, I remember.  I do, I understand"
-Confucius

"Nothing will benefit human health and increase chances for survival of life on Earth as much as the evolution to a vegetarian diet."
- Albert Einstein?

"American cartoons place characters in situations; anime
places situations around characters.  Anime characters
are not like fictional characters but more like fictional
people; their actions stem directly from their personalities,
and not just as a means to move the story's plot
forward.  We are made to sympathize with them, and
not simply be entertained by them."
~John Oppliger~
Pages: [1]   Go Up
« previous next »
Sponsored Links