What is the volume of a 10-L gas sample at 496 K and 2.5 atm when conditions are changed to STP?

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What is the volume of a 10-L gas sample at 496 K and 2.5 atm when conditions are changed to STP?

A. 7.0 L
B. 11 L
C. 14 L
D. 21

2006-10-22 12:31:28 · 2 answers · asked by Aurora C 1 in Science & Mathematics ➔ Chemistry

2 answers

VERY EASY. THE ANSWER IS C. 14L

V=(273X2.5X10)/(1X496)=
14L=C, and thats ur answer

2006-10-22 12:34:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋

use good ole P1V1=nRT1 to find n at the first set of conditions.
then use P2V2=nRT2 to find V at STP.

so n=P1V1/RT1
then V2 = nRT2/P2 or V2 = P1V1T2/P2T1

2006-10-22 19:43:20 · answer #2 · answered by Jake S 5 · 0⤊ 0⤋