Yahoo Answers: Answers and Comments for How many grams of carbon dioxide are contained in 550 mL of this gas at STP? [Chemistry]
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From Jesse C
enCA
Tue, 23 Oct 2007 23:25:10 +0000
3
Yahoo Answers: Answers and Comments for How many grams of carbon dioxide are contained in 550 mL of this gas at STP? [Chemistry]
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From papastolte: e. 1.1g
Find moles from 1mol =22.4L
mol CO2 ...
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Tue, 23 Oct 2007 23:36:54 +0000
e. 1.1g
Find moles from 1mol =22.4L
mol CO2 = 0.550 L / 22.4 L/mol = 0.025 mol CO2
Find grams by multiplying by Molar Mass of CO2, 44.0g/mol
g = 0.025 mol x 44.0g/mol = 1.10g CO2
Note: Use a calculator to check these numbers. I did them in my head.

From Anonymous: use the formula:
PV=nRT
P=101.3kPa
V=0.55...
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Wed, 24 Oct 2007 04:02:45 +0000
use the formula:
PV=nRT
P=101.3kPa
V=0.55L
n=? (what we need to find)
R=constant (8.315)
T=273K
rearrange the formula so n equals
n=PV/RT
n=101.3x0.55/8.315x273
n=2.45x10^2 moles of CO2
Using n=m/M, rearrange to get mass
m=nM
M(CO2)=12.01+16x2
=44.01g/mol
m=(2.45x10^2)x44.01
m=1.08grams which is closer to 1.10grams (e)
Therefore, the answer is e.

From rHai: u can use PVnRT
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Tue, 23 Oct 2007 23:35:18 +0000
u can use PVnRT

From Sage: e
you need the density of CO2 at STP, from ...
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Tue, 23 Oct 2007 23:35:02 +0000
e
you need the density of CO2 at STP, from that you can convert it.
550ml(.001977)=x