1. The reaction of sulfur with oxygen is shown below.
2S(s) + 3O2(g) → 2SO3(g)
Calculate the mass of sulfur trioxide (in g) produced when 100.0 g of each reactant is present.
A. 100.0
B. 166.8
C. 249.7
D. 200.0
I do know that the molar mass of sulfur trioxide is 80.066 g/mol.
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OpenStudy (kj4uts):
When it says reactant is it referring to 2S(s) + 3O2(g)?
OpenStudy (kj4uts):
@NvidiaIntely
OpenStudy (kj4uts):
The molar mass of O2 is 15.999*3=47.997 "3O2(g)"
NvidiaIntely (nvidiaintely):
I thought its referring to 2S(s).
OpenStudy (kj4uts):
Oh yeah I see what you mean, would that be sulfur?
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NvidiaIntely (nvidiaintely):
yes
NvidiaIntely (nvidiaintely):
(i knew there must have been a reason I got that title)
OpenStudy (kj4uts):
Lol
OpenStudy (kj4uts):
So then the molar mass would be 32.06 and the *2 = 64.12
OpenStudy (kj4uts):
I am just confused where I go from there?
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OpenStudy (kj4uts):
Do they mean 100 g of the sulfur?
NvidiaIntely (nvidiaintely):
yes
NvidiaIntely (nvidiaintely):
Do you get it now?
NvidiaIntely (nvidiaintely):
1 gram of sulfur is 0.0124901327951 moles.
OpenStudy (kj4uts):
So if you take 0.0124901327951*100=1.24901328
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NvidiaIntely (nvidiaintely):
Yeah
OpenStudy (kj4uts):
So 100 grams of Sulfur Trioxide = 1.249013279
NvidiaIntely (nvidiaintely):
Yeah, I think so.
OpenStudy (kj4uts):
Ok thanks I think I got it :)
NvidiaIntely (nvidiaintely):
So you got the answer to the question?
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