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2. A small bubble rises from the bottom of a lake, where the temperature and pressure are 4°C and 3.0 atm, to the water's surface, where the temperature is 25°C and the pressure is 0.95 atm. Calculate the final volume of the bubble if its initial volume was 2.1 mL.


A. 0.72 mL
B. 6.2 mL
C. 41.4 mL
D. 22.4 mL
E. 7.1 mL



3. Calculate the mass, in grams, of 2.74 L of CO gas measured at 33°C and 945 mmHg.


A. 0.263 g
B. 2.46 g
C. 3.80 g
D. 35.2 g
E. 206 g