At 570 mm Hg and 25C a gas sample has a volume of 2270mL.?

What is the final pressure (in mmHg) at a volume of 1250mL and a temperture of 175C?

Answer:
This is a Combined Gas Law equation.
P1 x V1 x T2 = P2 x V2 x T1.

570mmHg x 2270mL x 448K (175°C) = 1250mL x 298K (25°C)
P2 = (570 x 2270 x 448) ÷ (1250 x 298)
P2 = 579,667,200 ÷ 372,500
Final Pressure (P2) = 1,556.2mmHg (2.05 atm)
use the equation pv/t=pv/t

P = Pressure
V = Volume
T = Temperature in Kelvin

so 570mmHg*2270mL/298K = x*1250mL/(273+175)K
4342 = 1250x/448
1945216=1250x
1556.2=x


So the final pressure is 1556.2mmHg (not including sigfigs)

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