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28 January, 18:32

A sample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. The pressure of the sample is 0.90 atmosphere and the temperature is 298 K. What is the volume of the sample at STP?

a. 41 mL

b. 49 mL

c. 51 mL

d. 55 mL

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  1. 28 January, 19:26
    0
    P1v1/t1 = p2v2/t2

    0.9atm (50ml) / 298K = 1atm x (v) / 273

    solve for v

    0.9 x 50 x 273 / 298 x 1 = v

    v = 41.2 ml
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