Question

So you are using the combined gas law

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A gas has a volume of 10.00L at 50.00oC at a pressure of 650mmHg. What is the new volume at STP?




thanks

Answer 1

7.22L

Step-by-step explanation:

At Stp T2 = 273K and P2 is 1 atm

So we have the following data

V1 =10L. P1=650mmHg(0.855atm)

V2 =V2. P2 = 1 atm

T1=50°c (323K) T2 =273K

Hence from the combined gas law

P1xV1 /T1 =P2xV2/T2

0.855x10/323 =1xV2 /273

8.55/323 =V2 /273

V2 = 8.55x273 /323

V2 = 7.226 L