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ps12 - Chemistry 1211K Dr Harvey Moody Gas Laws 1 Gases...

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Chemistry 1211K Dr. Harvey Moody Gas Laws 1. Gases consist mostly of a. electron clouds b. atomic nuclei c. empty space d. ions 2. A balloon originally had a volume of 4.39 L at 44°C and a pressure of 729 torr. To what temperature must the balloon be cooled to reduce its volume to 3.78 L if the pressure is constant? 3. 24.2 g of a gas initially at 4.00 atm is compressed from 8.00 L to 2.00 L at constant temperature. What is the resulting pressure in atm of the gas? 4. A gas originally at 27°C and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11°C. What is the new volume of the gas? 5. What volume of hydrogen gas at 38.0°C and 763 torr can be produced by the reaction of 4.33 g zinc with excess sulfuric acid? a. 1.68 L b. 2.71 x 10 -4 L c. 3.69 x 10 4 L d. 2.84 L
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