We will use Dalton’s law of partial pressure.
Formula used:
Pressure of dry gas = pressure of wet gas - pressure of H2
= 705 torr - 17.5 torr
= 688 torr
Answer : 688 torr
A sample of He collected over water at a temperature of 20'C has a pressure of...
30.0 mL sample of hydrogen gas (H2) is collected over water at 20.00∘C and has a total pressure of 700.0 torr. The partial pressure of water vapor at 20.00∘C is 17.5 torr. Calculate the mole fraction of H2 gas in the sample.
Carbon dioxide is collected over water at a temperature of 11 ˚C. The pressure of water vapor at 35 ˚C is 42.2 torr. The pressure of the collected gas (water vapor + carbon dioxide) has a pressure of 0.789 atm, what is the pressure of the carbon dioxide in atmospheres (atm)?
If the volume of wet gas collected over water is 78.0 mL at 20 ∘C and 753 mmHg , what is the volume of dry gas at STP conditions? (The vapor pressure of water at 20 ∘C is 17.5 mmHg.)
A 1,096.9 mL sample of hydrogen gas was collected over water at 25°C and a pressure of 777.6 torr. If the pressure of water vapor is 24.0 torr at 25.0°C, what mass of hydrogen gas (g) was collected?
20. A sai 19. A sample of O, gas was collected over water at 23°C and 772 torr. What is the partial pressure of the OZ? (Refer to Appendix IV for the vapor pressure of water.) Hg. for th
A gas is collected over water at a temperature where the vapor pressure of water is known to be 25.0 mmHg. The total pressure recorded in the container is 775.0 mmHg, what is the pressure of the “dry” gas, in mmHg, being collected?
5) Oxygen gas is collected over water. The total pressure (the O2 pressure + the water vapor pressure) is 765 torr. The temperature of the water is such that the water vapor pressure is 38 torr. What is the partial pressure of the oxygen gas in torr?
A sample of carbon dioxide collected over water at a temperature of 25∘C and a pressure of 764 torr has a volume of 0.560 L. What is the partial pressure of this carbon dioxide sample?
9.(10 points) If you collect 0.680 L of a sample of oxygen over water at a temperature of 27.0 °C and 774 torr, what volume would the dry gas occupy at the same conditions of temperature and pressure? (the vapor pressure of water at 27.0 °C is 26.7 torr)
9.(10 points) If you collect 0.680 L of a sample of oxygen over water at a temperature of 27.0 °C and 774 torr, what volume would the dry gas occupy at...
A 100 mL sample of oxygen gas is collected over water at 26 °C and at a pressure of 756 torr. Given that the vapor pressure of water at 26 °C is 25 torr, how many moles of dry oxygen are present? Show all steps and explain fully. ANSWER: 3.9 x 10^-3 mol