7.) A sample of oxygen was collected over water at 20°C and 750 mmHg. The volume of the container was 275 mL. Calculate the mass of 02 collected assuming that the gases behave perfectly. The vapor pressure of water at 20°C is 17.54 mmHg. A.) 0.353 g B.) 0.361 g C.) 0.00845 g D.) 0.370 g E.) 2.71 g

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7.) A sample of oxygen was collected over water at 20°C and 750 mmHg. The volume of the container
was 275 mL. Calculate the mass of 02 collected assuming that the gases behave perfectly. The vapor
pressure of water at 20°C is 17.54 mmHg.
A.) 0.353 g
B.) 0.361 g
C.) 0.00845 g
D.) 0.370 g
E.) 2.71 g
Transcribed Image Text:7.) A sample of oxygen was collected over water at 20°C and 750 mmHg. The volume of the container was 275 mL. Calculate the mass of 02 collected assuming that the gases behave perfectly. The vapor pressure of water at 20°C is 17.54 mmHg. A.) 0.353 g B.) 0.361 g C.) 0.00845 g D.) 0.370 g E.) 2.71 g
5.) Calculate the most probable speed of an argon gas (39.95 g/mol) at 298K.
A. 1.36 x 103 cm/s
B. 4.31 x 104 cm/s
C. 3.52 x 104 cm/s
D.) 1.11 x 103 cm/s
Transcribed Image Text:5.) Calculate the most probable speed of an argon gas (39.95 g/mol) at 298K. A. 1.36 x 103 cm/s B. 4.31 x 104 cm/s C. 3.52 x 104 cm/s D.) 1.11 x 103 cm/s
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