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Answer the following as either true or false.
1. A sample of 0.300 moles of nitrogen occupies 0.600 L. Under the same conditions, 0.600 moles
occupy 1.200 L ? _____
2. The volume of a gas is proportional to the temperature of a gas is known as
______
3. In Boyle's Law, pressure is inversely proportional to temperature. ______
4. 0.399 moles of CO are contained in a 5.00 L tank at 155°C and 2.80 atm? ______
5. 18.8 g mass of NO2 is contained in a 13.0 L tank at 4.58 atm and 385 K ?______
6. A 0.465 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. 38.0 g/mol
is the molar mass of the unknown compound?
7. 0.30 is the mole fraction of CO in a container with a H2 mole fraction of 0.22 and an O2 mole
fraction of 0.58? ______
8. A gas sample contains 0.33 atm of Ne, 0.45 atm of Ar, and 0.32 atm of CO. The total pressure is
1.1 atm. ______
9. A mixture of 10.0 g of Ne and 10.0 g Ar has a total pressure of 1.6 atm. The partial pressure of Ne
is 1.1 atm. _____
10. At very high pressures, a gas will occupy a larger volume than predicted by the
______
11. The reason why a hot air balloon goes up in the air is that the hot air inside the balloon is less
dense._____
12. Gas molecules attract each other is not an assumption in the kinetic molecular theory for gases?
_____
13. Energy that is associated with the position or composition of an object is called thermal energy.
_____
14. q = - , w = - represent a system that is doing work on the surroundings, as well as losing heat to
the surroundings? ____
15. ΔEsys = -95 J that the system is losing 95 J, while the surroundings are gaining 95 J. _____
16. Given w = 0, an endothermic reaction has +ΔH and +ΔE. _______
17. State functions does depend on the path taken to arrive at a particular state. _____
18. A block of metal initially at 70°C is submerged in water initially at 25°C in a coffee cup. The final
temperature of the coffee cup will higher than 25°C but less than 70°C.____
19. Heat is the transfer between two objects due to the temperature difference. _____
20. Specific Heat (Cs): the required amount of heat energy to increase the temperature of one gram
of a certain substance by 2 °C. _____
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4. 0.399 moles of CO are contained in a 5.00 L tank at 155°C and 2.80 atm? ______
5. 18.8 g mass of NO2 is contained in a 13.0 L tank at 4.58 atm and 385 K ?______
6. A 0.465 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. 38.0 g/mol
is the molar mass of the unknown compound?
7. 0.30 is the mole fraction of CO in a container with a H2 mole fraction of 0.22 and an O2 mole
fraction of 0.58? ______
8. A gas sample contains 0.33 atm of Ne, 0.45 atm of Ar, and 0.32 atm of CO. The total pressure is
1.1 atm. ______
9. A mixture of 10.0 g of Ne and 10.0 g Ar has a total pressure of 1.6 atm. The partial pressure of Ne
is 1.1 atm. _____
10. At very high pressures, a gas will occupy a larger volume than predicted by the
______
11. The reason why a hot air balloon goes up in the air is that the hot air inside the balloon is less
dense._____
12. Gas molecules attract each other is not an assumption in the kinetic molecular theory for gases?
_____
13. Energy that is associated with the position or composition of an object is called thermal energy.
_____
14. q = - , w = - represent a system that is doing work on the surroundings, as well as losing heat to
the surroundings? ____
15. ΔEsys = -95 J that the system is losing 95 J, while the surroundings are gaining 95 J. _____
16. Given w = 0, an endothermic reaction has +ΔH and +ΔE. _______
17. State functions does depend on the path taken to arrive at a particular state. _____
18. A block of metal initially at 70°C is submerged in water initially at 25°C in a coffee cup. The final
temperature of the coffee cup will higher than 25°C but less than 70°C.____
19. Heat is the transfer between two objects due to the temperature difference. _____
20. Specific Heat (Cs): the required amount of heat energy to increase the temperature of one gram
of a certain substance by 2 °C. _____
No explanation needed
4. 0.399 moles of CO are contained in a 5.00 L tank at 155°C and 2.80 atm? ______
5. 18.8 g mass of NO2 is contained in a 13.0 L tank at 4.58 atm and 385 K ?______
6. A 0.465 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. 38.0 g/mol
is the molar mass of the unknown compound?
7. 0.30 is the mole fraction of CO in a container with a H2 mole fraction of 0.22 and an O2 mole
fraction of 0.58? ______
8. A gas sample contains 0.33 atm of Ne, 0.45 atm of Ar, and 0.32 atm of CO. The total pressure is
1.1 atm. ______
9. A mixture of 10.0 g of Ne and 10.0 g Ar has a total pressure of 1.6 atm. The partial pressure of Ne
is 1.1 atm. _____
10. At very high pressures, a gas will occupy a larger volume than predicted by the
______
11. The reason why a hot air balloon goes up in the air is that the hot air inside the balloon is less
dense._____
12. Gas molecules attract each other is not an assumption in the kinetic molecular theory for gases?
_____
13. Energy that is associated with the position or composition of an object is called thermal energy.
_____
14. q = - , w = - represent a system that is doing work on the surroundings, as well as losing heat to
the surroundings? ____
15. ΔEsys = -95 J that the system is losing 95 J, while the surroundings are gaining 95 J. _____
16. Given w = 0, an endothermic reaction has +ΔH and +ΔE. _______
17. State functions does depend on the path taken to arrive at a particular state. _____
18. A block of metal initially at 70°C is submerged in water initially at 25°C in a coffee cup. The final
temperature of the coffee cup will higher than 25°C but less than 70°C.____
19. Heat is the transfer between two objects due to the temperature difference. _____
20. Specific Heat (Cs): the required amount of heat energy to increase the temperature of one gram
of a certain substance by 2 °C. _____
- Fill in the missing reactant, reagent and products. Indicate stereochemistry if necessary. Unless otherwise specified, assume the reagents are in excess.arrow_forwardA.) a mixture of argon and neon gases, in a 8.32 L flask at 21 degrees Celsius, contains 15.3 grams of argon and 2.24 grams of neon. The partial pressure of neon in the flask is ____atm and the total pressure in the flask is ____atm. B.) a mixture of helium and xenon gases is maintained in a 9.17 L flask at a pressure of 1.28 atm and a temperature of 84 degrees Celsius. If the gas mixture contains 0.637 grams of helium, the number of grams of xenon in the mixture is ____grams.arrow_forwardItem 3 3 of 16 > I Review I Constants I Periodic Table Avogadro's law states that the volume, V, of a gas is directly related to the number of moles, n, of the gas when temperature and pressure are constant: (Figure 1) Part A A cylinder, with a piston pressing down with a constant pressure, is filled with 2.00 moles of a gas (n1), and its volume is 47.0 L (V). If 0.300 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of the gas inside the cylinder? Vi V2 n1 n2 where Vi is the volume filled by ni moles and V2 is the volume filled by a different number of moles, n2. Express your answer with the appropriate units. • View Available Hint(s) HÀ ? Figure 1 of 1 V2 = Value Units Part B A sample of gas in a cylinder as in the example in Part A has an initial volume of 60.0 L , and you have determined that it contains 2.00 moles of gas. The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but…arrow_forward
- A cylinder with a movable piston records a volume of 12.8 L when 3.5 mol of oxygen is added. The gas in the cylinder has a pressure of 5.83 atm. The cylinder develops a leak, and the volume of the gas is now recorded to be 12.0 L at the same pressure. How many moles of oxygen are lost? ____ molarrow_forwardA sample of argon gas collected at a pressure of 0.547 atm and a temperature of 19.0 °C is found to occupy a volume of 28.5 liters. How many moles of Ar gas are in the sample? molarrow_forwardA sample containing 4.70 gg of O2O2 gas has an initial volume of 11.0 LL . What is the final volume, in liters, when each of the following changes occurs in the quantity of the gas at constant pressure and temperature? A. A sample of 0.650 mole of O2O2 is added to the 4.70 gg of O2O2 in the container. B. A sample of 1.65 gg of O2O2 is removed from the 4.70 gg of O2O2 in the container. C.A sample of 4.80 gg of O2O2 is added to the 4.70 gg of O2O2 gas in the container.arrow_forward
- Step by step pleasearrow_forwardA sample of nitrogen gas that occupies a volume of 45.5 L at a temperature of 0 °C and a pressure of 1 atm contains ________ moles of gas.arrow_forwardA sample of helium gas collected at a pressure of 1.08 atm and a temperature of 29.0 °C is found to occupy a volume of 22.4 liters. How many moles of He gas are in the sample? molarrow_forward
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