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13 Dec 2019

A 1.20 −g sample of dry ice is added to a 760 −mL flask containing nitrogen gas at a temperature of 25.0 ∘C and a pressure of 715 mmHg . The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0 ∘C .

What is the total pressure in the flask?

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Jean Keeling
Jean KeelingLv2
17 Dec 2019

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Related questions

SHOW WORK for points.

1. A 1.20 g sample of dry ice is added to a 755 mL flask containing N2 gas at 25.0 °C and 725 mmHg. If all of the dry ice sublimes (converts from a solid to a gas) and the temperature in the flask then returns to 25.0 °C, what is the total pressure in the flask?

2. A mixture of gasses contains 1.25 g N2 and 0.85 g O2 in a 1.55 L flask at 18 °C. Calculate the mole fraction and partial pressure of each component in the gas mixture.

3. CH3OH is synthesized via the following reaction: CO (g) + 2H2 (g) ïƒ CH3OH (g) . If the reaction occurs at 748 mmHg and 25 °C , what volume of H2 gas (in L) is necessary to synthesize 25.8 g CH3OH? What volume (L) of CO gas is required?

4. Hydrogen gas can be formed by the reaction of methane and water according to the following equation: CH4 (g) + H2O (g) ïƒ CO (g) + 3H2 (g) . In one reaction, 25.5 L of methane gas (at P = 732 Torr, T = 25 °C) is mixed with 22.8 L of water vapor (at P = 702 Torr, T = 125 °C). The reaction produces 26.2 L hydrogen gas at STP. What is the percent yield of the reaction?

A 65.56 g quantity of dry ice (solid carbon dioxide) is allowed to sublime (evaporate) in a position like apparatus. Calculate the expansion work done against external pressure of 0.956 atm and at a constant temperature of 22C. Assume that the initial volume of dry ice id negligible and the CO2 behaves as an ideal gas (1L•atm=101.3J)

A 17.5-g quantity of dry ice (solid carbon dioxide) is allowed to sublime (evaporate) in an apparatus like the one shown in the figure below. Calculate the expansion work done against a constant external pressure of 0.975 atm and at a constant temperature of 26°C. Assume that the initial volume of dry ice is negligible and that CO2 behaves like an ideal gas.

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