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UVC contain the same mogen number of gas particles 13 | Which cylinder at STP will contain the greatest mass of gas...
a. in the reaction: 2 C2H6 (g) + 7 O2 (g) -----> 4 CO2 (g) +...
a. in the reaction: 2 C2H6 (g) + 7 O2 (g) -----> 4 CO2 (g) + 6 H2O (g), increasing the concentration of C2H6 (g) will: increase the acivation energy, decrease the activation energy, increase reaction rate OR decrease the reaction rate? b. An equilibrium constant with a value of 5.7 X 10-8 indicates that at equilibrium: the reactants are favored, the products are favored, OR approximately equal concentrations of reactions and products are present. c. A balloon that contains...
1a)Which of the following statements is true concerning ideal gases? Select one:a The gas particles in...
1a)Which of the following statements is true concerning ideal gases? Select one:a The gas particles in a sample exert attraction on one another b All of these statements are false cThe temperature of the gas sample is directly related to the average velocity of the gas particles dA gas exerts pressure as a result of the collisions of the gas molecules with the walls of the container e At STP, 1.0 L of gaseous Ar contains about twice the number...
1) determine the number of particles in 55.4 L of carbon dioxide gas at STP. [if...
1) determine the number of particles in 55.4 L of carbon dioxide gas at STP. [if needed Molar mass = 44.01g/mol] 2) determine the mass of 1.50 x 10^24 particles of water. [if needed Molar mass = 18.02 g/mol] please put answers in step by step and scientific notation thank you !
#1) Which of the following gas samples contains the greatest mass of gas molecules? a. 1...
#1) Which of the following gas samples contains the greatest mass of gas molecules? a. 1 L of He at STP b. 1 L of Xe at STP c. 1 L of H2 at STP d. All are the same #2) Which physical property/state is incorrectly matched? a. liquids - rigid shape b. gases - easily compressed c. gases and liquids - flow d. solids - higher density than gases e. liquids - incompressible
13-18 please D Question 13 If the number of moles of gas initially contained in a...
13-18 please
D Question 13 If the number of moles of gas initially contained in a 2.10 L vessel is tripled, what is the final volume of the gas in liters? 06.30 O 4.20 None of the proposed answers O 8.40 0.525 Question 14 If the volume of a confined gas is quadrupled while its temperature remains constant, what change will be observed? The pressure of the gas will quadruple The average velocity of the molecules will quadruple The density...
"Ya. e. 1:1 12. What volume of sulfur trioxide gas, SOs, has the same number of...
"Ya. e. 1:1 12. What volume of sulfur trioxide gas, SOs, has the same number of atoms as 4 L of helium gas at the same temperature and pressure? a. 20 L b. 0.8 L c.4L d. IL e. 16 L 13. The following equation represents the oxidation of ammonia, NH). 4NH3(g) + 5O2(g) - 4NO(g) + 6H2O(g) At the same temperature and pressure, what is the maximum volume of nitrogen monoxide that can be obtained from 7.55 x 10L...
8. i) How many moles of Neon gas will occupy a container with a volume of...
8. i) How many moles of Neon gas will occupy a container with a volume of 2.5 L at a temperature of 31.5°C and a pressure of 912 torr? ii) What is the density of the gas? 9. A tank of compressed mixed gases contains 0.40 moles of Hz (hydrogen), 1.3 moles of NO2 (nitrogen dioxide), and 0.80 moles of Ar (argon). The total pressure in the tank is 2.8 atm. What is the partial pressure of the Hz gas?...
8. Why does carbon contain only 4 valence electrons when it has 6 total electrons? 9.True...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
answer all please 31. Calculate the number of moles and the mass of gas in 3.40...
answer all please
31. Calculate the number of moles and the mass of gas in 3.40 L of He at STP. A. 0.152 mol 0.608 g B. 76.2 mol. 305 g C. 0.152 mol, 0.0379 g D. 76.2 mol. 19.0 g E. 1.00 mol, 4.00 g 32. Calculate the number of moles in 95.0 g of O., and the volume that it would occupy at 80.0°C and 3.50 atm A 11.9 mol, 266 L B. 5.94 mol, 11.1 L C....
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
13-18 please
D Question 13 If the number of moles of gas initially contained in a 2.10 L vessel is tripled, what is the final volume of the gas in liters? 06.30 O 4.20 None of the proposed answers O 8.40 0.525 Question 14 If the volume of a confined gas is quadrupled while its temperature remains constant, what change will be observed? The pressure of the gas will quadruple The average velocity of the molecules will quadruple The density...
"Ya. e. 1:1 12. What volume of sulfur trioxide gas, SOs, has the same number of atoms as 4 L of helium gas at the same temperature and pressure? a. 20 L b. 0.8 L c.4L d. IL e. 16 L 13. The following equation represents the oxidation of ammonia, NH). 4NH3(g) + 5O2(g) - 4NO(g) + 6H2O(g) At the same temperature and pressure, what is the maximum volume of nitrogen monoxide that can be obtained from 7.55 x 10L...
8. i) How many moles of Neon gas will occupy a container with a volume of 2.5 L at a temperature of 31.5°C and a pressure of 912 torr? ii) What is the density of the gas? 9. A tank of compressed mixed gases contains 0.40 moles of Hz (hydrogen), 1.3 moles of NO2 (nitrogen dioxide), and 0.80 moles of Ar (argon). The total pressure in the tank is 2.8 atm. What is the partial pressure of the Hz gas?...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
answer all please
31. Calculate the number of moles and the mass of gas in 3.40 L of He at STP. A. 0.152 mol 0.608 g B. 76.2 mol. 305 g C. 0.152 mol, 0.0379 g D. 76.2 mol. 19.0 g E. 1.00 mol, 4.00 g 32. Calculate the number of moles in 95.0 g of O., and the volume that it would occupy at 80.0°C and 3.50 atm A 11.9 mol, 266 L B. 5.94 mol, 11.1 L C....
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
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