(Answered) 1 a package of pretzels contains 0145 l of air on the

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1) A package of pretzels contains 0.145 L of air on the ground where the temperature is 28°C and the atmospheric pressure is 760. torr. If the temperature decreases to 17°C and the pressure decreases to 637 torr when the plane reaches its cruising altitude, what volume of air will be in the bag of pretzels?

2) What volume (L) will each of the following occupy at STP?

(a) 4.66 × 1023 molecules of CH4

(b) 3.6 mol CH4

3) At 19 °C and 770 torr pressure, what will be the volume of 71 mol of HF gas?

4) How many moles of NH3 are contained in 5.05 L at 27 °C and 1.9 atm?

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