November 23, 2024, 09:21:14 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: 1 [2]   Go Down

Topic: Chemistry 1010  (Read 13415 times)

0 Members and 1 Guest are viewing this topic.

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3653
  • Mole Snacks: +222/-42
  • Gender: Male
Re: Chemistry 1010
« Reply #15 on: July 21, 2009, 03:17:01 PM »
From your balanced equation;

2 H2S + 3 O2  :rarrow: 2 SO2 + 2 H2O

for every molecule (and hence mole) of H2S you put in, given excess oxygen, you form one molecule of SO2. So, if you have 9.7 mol of H2S, how many moles of SO2 can you form?
Logged

Offline duduhead

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +0/-1
Re: Chemistry 1010
« Reply #16 on: July 21, 2009, 03:23:01 PM »
9.7?
Logged

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3653
  • Mole Snacks: +222/-42
  • Gender: Male
Re: Chemistry 1010
« Reply #17 on: July 21, 2009, 03:25:44 PM »
Quote from: duduhead on July 21, 2009, 03:23:01 PM
9.7?

Right, so what is the molecular mass of SO2, and given that, and the number of moles, what mass of SO2 can you produce?
Logged

Offline duduhead

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +0/-1
Re: Chemistry 1010
« Reply #18 on: July 21, 2009, 03:28:29 PM »
64?
Logged

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3653
  • Mole Snacks: +222/-42
  • Gender: Male
Re: Chemistry 1010
« Reply #19 on: July 22, 2009, 01:56:19 AM »
64 g mol-1 is the molecular weight, yes, so how much SO2 can you produce?
Logged

Offline duduhead

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +0/-1
Re: Chemistry 1010
« Reply #20 on: July 22, 2009, 02:26:05 PM »
is it 1 gram?
Logged

Offline sjb

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 3653
  • Mole Snacks: +222/-42
  • Gender: Male
Re: Chemistry 1010
« Reply #21 on: July 22, 2009, 02:42:05 PM »
Quote from: duduhead on July 22, 2009, 02:26:05 PM
is it 1 gram?

No. If 1 egg weighs 64g, how many grams does 9.7 eggs weigh?

Not being horrible or anything, but how much maths / chemistry have you done - these sort of problems are reasonably straightforward and, arguably to me, well below undergraduate level.

S
Logged

Offline duduhead

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +0/-1
Re: Chemistry 1010
« Reply #22 on: July 22, 2009, 03:05:15 PM »
I am taking an online chemistry course, and I am having trouble with these sorts of problems in general. I can't find any examples anywhere. I wish I knew the method for doing them though.
Logged

Offline nj_bartel

  • Sr. Member
  • *****
  • Posts: 1487
  • Mole Snacks: +76/-42
Re: Chemistry 1010
« Reply #23 on: July 22, 2009, 05:14:14 PM »
Logged

Offline duduhead

  • Regular Member
  • ***
  • Posts: 15
  • Mole Snacks: +0/-1
Re: Chemistry 1010
« Reply #24 on: July 23, 2009, 02:22:44 PM »
what are these types of problems called?
Logged

Offline nj_bartel

  • Sr. Member
  • *****
  • Posts: 1487
  • Mole Snacks: +76/-42
Re: Chemistry 1010
« Reply #25 on: July 23, 2009, 06:09:24 PM »
Logged
Pages: 1 [2]   Go Up
« previous next »
Sponsored Links