Consider a classroom with dimensions 10 m by 20 m by 3 m. You have a...
Consider a classroom with dimensions 10 m by 20 m by 3 m. You have a two-liter flask containing, at room temperature and pressure, a harmless gas not normally found in air, such as sulfur hexafluoride (SF6). If the gas in the flask is released and mixed thoroughly throughout the classroom, what is the final concentration of the gas in parts per million by volume?
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Consider a classroom with dimensions 10 m by 20 m by 3 m. You
have a...
A 3-m long cylinder has three compartments with two and each compartment has a volume of...
A 3-m long cylinder has three compartments with two and each compartment has a volume of 45 L. Initially, the separators arc held in place and each compartment is open to the air, with the pressure in the room at 760 torr (1.0 atm), and the temperature at 0 degree C. Assume that the air is an ideal gas How many moles of gas are in each compartment? The connections from the compartments to the room are sealed off and:...
1. you are given a .5 m^3 container containing 9 moles of an ideal diatomic gas...
1. you are given a .5 m^3 container containing 9 moles of an ideal diatomic gas at 0° C, and you want to allow it to reach room temperature (20° C) while staying at the same pressure. You have a choice of holding the volume constant while heating it (process A) and then slowly decompressing the gas isothermally (process B) or simply heating it while maintaining pressure (process C). a) what is the change in entropy of the gas in...
3. Concentrations in solids and solution. You send a 10-g sample of rice to the lab...
3. Concentrations in solids and solution. You send a 10-g sample of rice to the lab for the determination of the total arsenic content. The analyst dissolves 1.0 g of the rice in 5.0 mL of concentrated acid and then dilutes the solution to a final volume of 25.0 mL. When analyzed by ICP-MS, the solution concentration is found to be 35 µg L-1. What is the concentration of arsenic in the rice (in µg kg-1)? ___________ ppb Hint: Follow...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure ...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following? (a) Triple the Kelvin temperature while holding the volume constant (b) Reduce the amount of gas by 1/3 while holding the temperature and volume constant (c) Decrease the volume by 45% at constant T (d) Halve the Kelvin temperature, and triple the volume 63) Assuming that air contains 78.0 percent Ni, 20.0...
1. Glucose, also known as blood sugar has the formula, C6H12O6. a) Write a balanced equation...
1. Glucose, also known as blood sugar has the formula, C6H12O6. a) Write a balanced equation for the combustion of glucose. b) If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.50 mol of glucose? c) What is the minimum amount of energy a plant must absorb to produced 15.0 g of glucose? 2. In the following, does S increase or decrease: a) A drop of ink spreading...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the followin...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the following data with an infrared gas analyzer: Time CO2 concentration arts per million, ppm 0 min 410 2 min521 4 min630 6 min 743 8 min859 10 min 973 12 min1081 Measuring soil respiration with a chamber and infrared gas analyzer. What is the flux...
I need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71 Documents Pearson Updad Assgrmerti Eimiting....
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
3) Adding heat at constant volume: You have a 10 L (10 -2 m 3 )...
3) Adding heat at constant volume: You have a 10 L (10 -2 m 3 ) fixed volume container that initially contains 1 kg of water. The water exists in both vapor and liquid phases, and is at an initial temperature of 180 C. Heat is then added until the final temperature of the water in the container is 250 C. This problem involves calculating the amount of heat that is added to achieve this final state. I will roughly...
plz help asap Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Co...
plz help asap
Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Column A Enter the measured masses of sodium carbonate from data page #1 в Using stoichiometry, calculate the theoretical number of moles of CO2 that can be produced from each reactant entry. C Using the ideal gas law, measured volume, and temperature, calculate the theoretical pressure of CO2(g) that can be produced from the theoretical moles of CO2(8) D Actual measured pressures of...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
A 3-m long cylinder has three compartments with two and each compartment has a volume of 45 L. Initially, the separators arc held in place and each compartment is open to the air, with the pressure in the room at 760 torr (1.0 atm), and the temperature at 0 degree C. Assume that the air is an ideal gas How many moles of gas are in each compartment? The connections from the compartments to the room are sealed off and:...
62) Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you were to do the following? (a) Triple the Kelvin temperature while holding the volume constant (b) Reduce the amount of gas by 1/3 while holding the temperature and volume constant (c) Decrease the volume by 45% at constant T (d) Halve the Kelvin temperature, and triple the volume 63) Assuming that air contains 78.0 percent Ni, 20.0...
3) You are using flux chambers to determine rates of soil respiration from the same Brazilian rainforest. Your chamber is a cylinder 20 cm in diameter and 18 cm in height, and you record the following data with an infrared gas analyzer: Time CO2 concentration arts per million, ppm 0 min 410 2 min521 4 min630 6 min 743 8 min859 10 min 973 12 min1081 Measuring soil respiration with a chamber and infrared gas analyzer. What is the flux...
I
need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...
plz help asap
Excel Spreadsheet: Part A: Use Excel to generate a spreadsheet with the following information. Column A Enter the measured masses of sodium carbonate from data page #1 в Using stoichiometry, calculate the theoretical number of moles of CO2 that can be produced from each reactant entry. C Using the ideal gas law, measured volume, and temperature, calculate the theoretical pressure of CO2(g) that can be produced from the theoretical moles of CO2(8) D Actual measured pressures of...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
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