Some chemistry (sapling) question??

Posted on 2015-11-12 12:25:00 in Chemistry by TOMY

1. A sample of an ideal gas at 1.00 atm and a volume of 1.95 L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 10.0 atm, what was the volume of the sample? Assume that the temperature was held constant.
how many L
2. A sealed container holding 0.0255 L of an ideal gas at 0.989 atm and 69 °C is placed into a refrigerator and cooled to 43 °C with no change in volume. Calculate the final pressure of the gas.
how many atm
3. An ideal gas in a sealed container has an initial volume of 2.65 L. At constant pressure, it is cooled to 25.00 °C where its final volume is 1.75 L. What was the initial temperature?
how many *C
4. A hot air balloon is filled with 1.51 × 106 L of an ideal gas on a cool morning (11 °C). The air is heated to 119 °C. What is the volume of the air in the balloon after it is heated? Assume that none of the gas escapes from the balloon.
how many L
5. If 30.5 mol of an ideal gas occupies 61.5 L at 11.00 °C, what is the pressure of the gas?
how many atm
6. If 15.5 moles of an ideal gas occupies 98.5 liters at 315 K, what is the pressure of the gas?
how many atm
7. If 1.26 moles of an ideal gas has a pressure of 4.80 atm, and a volume of 42.83 L, what is the temperature of the sample in degrees Celsius?
how many *C

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