Question

3. A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at 28°C and 810 mmHg. Calculate the number of CO molecules in the flask. The vapor pressure of water at 28°C is 28.3 mmHg. A) 5.0 × 10$^{22}$ B) 5.2 × 10$^{22}$ C) 3.8 × 10$^{23}$ D) 5.4 × 10$^{23}$ E) 3.8 × 10$^{25}$

          3. A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at
28°C and 810 mmHg. Calculate the number of CO molecules in the flask. The vapor
pressure of water at 28°C is 28.3 mmHg.
A) 5.0 × 10$^{22}$
B) 5.2 × 10$^{22}$
C) 3.8 × 10$^{23}$
D) 5.4 × 10$^{23}$
E) 3.8 × 10$^{25}$

3. A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at
28°C and 810 mmHg. Calculate the number of CO molecules in the flask. The vapor
pressure of water at 28°C is 28.3 mmHg.
A) 5.0 × 10^22
B) 5.2 × 10^22
C) 3.8 × 10^23
D) 5.4 × 10^23
E) 3.8 × 10^25

Added by Inmaculada A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

08/21/2022

Step 1

The total pressure is the sum of the pressure of the carbon monoxide and the pressure of the water vapor. So, the pressure of the carbon monoxide is the total pressure minus the pressure of the water vapor, which is 810 mmHg - 28 mmHg = 782 mmHg. Show more…

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A sample of carbon monoxide gas was collected in a 2.0 L flask by displacing water at 28°C and 810 mmHg. Calculate the number of CO molecules in the flask. The vapor pressure of water at 28°C is 28.3 mmHg. A) 5.0 × 10^22 B) 5.2 × 10^22 C) 3.8 × 10^23 D) 5.4 × 10^23 E) 3.8 × 10^25