(i) On average, how many particles per state are there in states with energy near 10-29 J? (i) How many particles occupy the states having energy between 10-29J and (10-2910-32)J? 3 2 (k) What fraction is this of the total number of states in this energy range? Total: 34
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6. Consider a rectangular container of dimensions Im x 2m x 6m containing 2 moles of helium (i) On average, how ma...
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?...
28) A sample of sulfur contains 1.81 x 1024 atoms of sulfur How many moles of...
28) A sample of sulfur contains 1.81 x 1024 atoms of sulfur How many moles of sulfur 28) does this represent? A) 3.01 mol B) 1.81 mol C) 1.77 mol D) 1.09 mol E) 0.333 mol 29) When the equation below is balanced with the lowest possible whole number coefficients, what is the sum of the coefficients? 29) Ca(s) + HCl(r) → CaCl2(s) + H26) A) 2 B) 5 C) 4 D) 8 E) 10 o) Aspirin is the common...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass of water evaporates, what happens to the temperature of the water? b) As a water vapor condenses onto a surface, what happens to the temperature of the vapor? c) As a solid sublimates, what happens to the temperature of the solid? Problem 3 [6] a) 15g of helium at 298K is equivalent to how many moles? molecules? volume? b) 15g of water at 298K...
25. You’re at the zoo and have a big red 3.20 L helium balloon. The barometric...
25. You’re at the zoo and have a big red 3.20 L helium balloon. The barometric pressure is 790.0 mm Hg. Then you hear the roar of a lion. Startled, you accidently release the balloon. It flies away. By the time it reaches the clouds the atmospheric pressure is only 0.300 atm. What is the new volume of the balloon? a) 6.20 L b) 11.1 L c) 1.06 L d) 8.43 L 26. A gas sample is held at constant...
im trying to figure out the equation to determine the shipping cost. AaBbCcD AaBbCD AaBbCr AaBbCct A 1 Normal 1 No Spac... Heading1 Heading 2 Paragraph Styles Consider the following data that y...
im trying to figure out the equation to determine the shipping
cost.
AaBbCcD AaBbCD AaBbCr AaBbCct A 1 Normal 1 No Spac... Heading1 Heading 2 Paragraph Styles Consider the following data that you have obtained regarding the shipping of the item. Number of Blenders 10 20 50 100 200 Shipping Cost (dollars) 38 70 154 254 304 Determine the equation of a quadratic function that best fits the above data. This will be your shipping a. cost function C(x). Use...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
All of the following questions are in relation to the following journal article which is available...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
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?...
28) A sample of sulfur contains 1.81 x 1024 atoms of sulfur How many moles of sulfur 28) does this represent? A) 3.01 mol B) 1.81 mol C) 1.77 mol D) 1.09 mol E) 0.333 mol 29) When the equation below is balanced with the lowest possible whole number coefficients, what is the sum of the coefficients? 29) Ca(s) + HCl(r) → CaCl2(s) + H26) A) 2 B) 5 C) 4 D) 8 E) 10 o) Aspirin is the common...
Problem 10.23 An alpha particle (a helium nucleus, containing 2 protons and 2 neutrons) starts out with kinetic energy of 9.9 MeV (9.9 x 100 eV), and heads in the +x direction straight toward a gold nucleus (containing 79 protons and 118 neutrons). The particles are initially far apart, and the gold nucleus is initially at rest. Answer the following questions about the collision. What is the initial momentum of the alpha particle? (You may assume its speed is small...
Problem 2 (9) Use kinetic theory of gasses to explain the following: a) As a glass of water evaporates, what happens to the temperature of the water? b) As a water vapor condenses onto a surface, what happens to the temperature of the vapor? c) As a solid sublimates, what happens to the temperature of the solid? Problem 3 [6] a) 15g of helium at 298K is equivalent to how many moles? molecules? volume? b) 15g of water at 298K...
im trying to figure out the equation to determine the shipping
cost.
AaBbCcD AaBbCD AaBbCr AaBbCct A 1 Normal 1 No Spac... Heading1 Heading 2 Paragraph Styles Consider the following data that you have obtained regarding the shipping of the item. Number of Blenders 10 20 50 100 200 Shipping Cost (dollars) 38 70 154 254 304 Determine the equation of a quadratic function that best fits the above data. This will be your shipping a. cost function C(x). Use...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
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