chem 1a 8 questions
tenuised
NewMicrosoftWordDocument3.docxAn ideal gas is in a cylinder with a volume of 5.1 ✕ 102 mL at a temperature of 28°C and a pressure of 710 torr. The gas is compressed to a volume of 20. mL, and the temperature is raised to 810°C. What is the new pressure?
A 3.50-L gas sample at 100.°C and 610. torr contains 11.2% neon and 88.8% argon by mass. What are the partial pressures of the individual gases?
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PNe |
torr |
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PAr |
torr |
Consider the reaction between 56.0 mL of liquid 1-propanol (C3H7OH; density = 0.803 g/mL) and 29.1 L of O2 at 27.0°C and a pressure of 1.58 atm. The products of the reaction are CO2(g) and H2O(g). Calculate the number of moles of H2O formed if the reaction goes to completion.
Consider a 1.0-L container of neon gas at STP. Will the average kinetic energy, root mean square velocity, frequency of collisions of gas molecules with each other, frequency of collisions of gas molecules with the walls of the container, and energy of impact of gas molecules with the container increase, decrease, or remain the same under each of the following conditions?
(a) The temperature is increased to 100°C.
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The average kinetic energy will . |
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The root mean square velocity will . |
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The frequency of collisions with each other will . |
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The frequency of collisions with the walls of the container will . |
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The impact energy will . |
(b) The temperature is decreased to −50°C.
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The average kinetic energy will . |
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The root mean square velocity will . |
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The frequency of collisions with each other will . |
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The frequency of collisions with the walls of the container will . |
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The impact energy will . |
(c) The volume is decreased to 0.5 L.
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The average kinetic energy will . |
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The root mean square velocity will . |
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The frequency of collisions with each other will . |
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The frequency of collisions with the walls of the container will . |
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The impact energy will . |
(d) The number of moles of neon is doubled.
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The average kinetic energy will . |
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The root mean square velocity will . |
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The frequency of collisions with each other will . |
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The frequency of collisions with the walls of the container will . |
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The impact energy will . |
The rate of effusion of a particular gas was measured to be 39.5 mL/min. Under the same conditions, the rate of effusion of pure nitrous oxide (N2O) gas is 47.7 mL/min. What is the molar mass of the unknown gas? g/mol
It took 3.9 minutes for 1.0 L of chlorine to effuse through a porous barrier. How long will it take for 1.0 L of O2 gas to effuse under identical conditions? min
A person accidentally swallows a drop of liquid neon, Ne(l), which has a density of 1.21 g/mL. Assuming the drop has a volume of 0.046 mL, what volume of gas will be produced in the person's stomach at body temperature (37°C) and a pressure of 1.0 atm? mL
