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With the following gas law problems, identify the variables that are changing and then identify the gas law equation to use. Make sure you set up the problem properly and solve for the unknown. 1. If you initially have a gas with a pressure of 0.95 atm and a temperature of 35C and heat it to 65C, what will the new pressure be if volume and moles are held constant? Gas law: _______________ 2. A sealed balloon filled with air has an internal pressure of 1.25 atm and a volume of 2.50 L. If the temperature remains constant at 25C, but the volume is compressed to 1.20 L, what would be the resulting pressure? Gas law: _______________ 3. How many moles of gas are sealed inside the balloon in question #2? Gas law: ________________ 4. A sample of nitrogen gas has a volume of 13.5 L at 32C and 2.5 atm. What is the volume when the pressure changes to 1.3 atm, when temperature is constant? Gas law: ________________
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