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Calculate the ratio of the effusion rate of oxygen (O2) to that of carbon dioxide gas...
Calculate the ratio of the effusion rate of oxygen (O2) to that of carbon dioxide gas (CO2). Express your answer in decimal form and calculate your answer to at least four sig figs. 4.690 Graham's Law of Effusion is: rate/ratez - (M/M)2 where M - molar mass A cylinder with a moveable piston contains 92g of Nitrogen. The external pressure is constant at 1.00 atm. The initial temperature is 200K. When the temperature is decreased by 70 K, by putting...
Hi! I keep getting marked down on this page so it would be great to see...
Hi! I keep getting marked down on this page so it would be
great to see what I've been doing incorrectly. Thank you!
11. Calculate the root-mean-square speed (w) for: a. a xenon atom at 298 K: b. an oxygen molecule at 298 K. faster 12. Both hydrogen and helium have been used as buoyant gases in blimps. If a small leak were to occur in a blimp filled with both gases, which gas would effuse more rapidly and by...
i need help with the last four questions along with step by step he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressur...
i need help with the last four questions along with
step by step
he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressure of 5.50 atm and a volume of 10.0 mL. If the volume is decreased to 125.0 mL, what is the resulting pressure of the gas? : 924 a4m 125 O P v (2 pts) If 0.722 L of a certain gas at...
According to the ideal gas law, a 0.9054 mol sample of krypton gas in a 1.023...
According to the ideal gas law, a 0.9054 mol sample of krypton gas in a 1.023 L container at 274.0 K should exert a pressure of 19.90 atm. What is the percent difference between the pressure calculated using the van der Waals' equation and the ideal pressure? For Kr gas, a = 2.318 L2atm/mol2 and b = 3.978×10-2 L/mol. % According to the ideal gas law, a 9.344 mol sample of oxygen gas in a 0.8267 L container at 500.1...
3a. Calculate the required mass of an unknown nonelectrolyte (ℳ = 125.7998 g/mol) dissolved in 12...
3a. Calculate the required mass of an unknown nonelectrolyte (ℳ = 125.7998 g/mol) dissolved in 129.7 g of solvent that gives a solution that freezes at 1.85 °C. The freezing point of the pure solvent is 4.44 °C and its Kf value is 1.87 °C/m. Report your answer to TWO places past the decimal. 3b. Calculate the molar mass (in g/mol) of an unknown nonelectrolyte if 0.613 g dissolved in 250.3 mL of water at 19.47 °C has an osmotic...
1.Effusion is a process in which a gas escapes from a container through a small opening...
1.Effusion is a process in which a gas escapes from a container through a small opening into a vacuum. In a pair of experiments, a sample of tetrafluoroethylene, C2F4, effuses at a rate of 4.6 × 10-6 mol/h and an unknown gas effuses at a rate of 4.0×10-6 mol/h. Identify the unknown gas. 2.Molecules in a sample of a gas move at a variety of speeds. Molecular speed can be described by the root-mean-square speed of the gas, which is...
2a Calculate the freezing point of a solution that is made from 39.9 g of a...
2a Calculate the freezing point of a solution that is made from 39.9 g of a nonelectrolyte (ℳ = 142.4701 g/mol) dissolved in 186.3 g of solvent. The solvent freezes at 1.24 °C and its Kf value is 2.09 °C/m. Report your answer to TWO places past the decimal. 2b The solubility of carbon dioxide gas at 37.3 °C and a carbon dioxide pressure of 554 mmHg is 4.04 × 10−3 g/L. What is the Henry's Law constant in mol⋅L−1⋅atm−1?...
emperature. energy of gas molecules will with aln) At constant temperature, the average kinetic energy of...
emperature. energy of gas molecules will with aln) At constant temperature, the average kinetic energy of Eas molecules will from 22.2 tooratory, a student finde that it takes 23.6 J to ineroase the temperature of solid tungaten according to the following reaction? (8 551 wbmuch heat is released when 75 g of oetane, Cahls, is burned completely in oxygen if the Δ11- (12) Using Hess's Law and the following enthalpies of reaction, find the unknown Minn. 8. (O) What volume...
I need your help please with these two questions. My Thermodynamics exam is tomorrow, like and comment are rewar...
I need your help please with these two questions. My
Thermodynamics exam is tomorrow, like and comment are rewarded for
good explanation of the answers
(c) The molar mass of oxygen atoms is 16.0g mol-1. The oxygen molecule O2 can be considered as two massive points (representing the oxygen atoms) separated by a distance of 1.21 x 10-10 m. The origin of the Cartesian coordinate system is placed in the molccular centre of mass and the a-axis is aligned along...
Looking for assistance on the problem. I have come to a few answers but would like...
Looking for assistance on the problem. I have come to a few answers
but would like a second opinion. Thanks!
In interstellar space there are clouds of cold gas (at about 20 K) called dark nebula because they block the light from stars behind them from reaching Earth. A typical diameter fro a dark nebula is about 20 light years and has a density of monatomic hydrogen of 50 hydrogen atoms per cubic centimeter. a.) Estimate the mean free path...
Calculate the ratio of the effusion rate of oxygen (O2) to that of carbon dioxide gas (CO2). Express your answer in decimal form and calculate your answer to at least four sig figs. 4.690 Graham's Law of Effusion is: rate/ratez - (M/M)2 where M - molar mass A cylinder with a moveable piston contains 92g of Nitrogen. The external pressure is constant at 1.00 atm. The initial temperature is 200K. When the temperature is decreased by 70 K, by putting...
Hi! I keep getting marked down on this page so it would be
great to see what I've been doing incorrectly. Thank you!
11. Calculate the root-mean-square speed (w) for: a. a xenon atom at 298 K: b. an oxygen molecule at 298 K. faster 12. Both hydrogen and helium have been used as buoyant gases in blimps. If a small leak were to occur in a blimp filled with both gases, which gas would effuse more rapidly and by...
i need help with the last four questions along with
step by step
he appropriate gas law to solve questions 1-6. Show work. (2 pts) A certain amount of a gas at a constant temperature has a pressure of 5.50 atm and a volume of 10.0 mL. If the volume is decreased to 125.0 mL, what is the resulting pressure of the gas? : 924 a4m 125 O P v (2 pts) If 0.722 L of a certain gas at...
emperature. energy of gas molecules will with aln) At constant temperature, the average kinetic energy of Eas molecules will from 22.2 tooratory, a student finde that it takes 23.6 J to ineroase the temperature of solid tungaten according to the following reaction? (8 551 wbmuch heat is released when 75 g of oetane, Cahls, is burned completely in oxygen if the Δ11- (12) Using Hess's Law and the following enthalpies of reaction, find the unknown Minn. 8. (O) What volume...
I need your help please with these two questions. My
Thermodynamics exam is tomorrow, like and comment are rewarded for
good explanation of the answers
(c) The molar mass of oxygen atoms is 16.0g mol-1. The oxygen molecule O2 can be considered as two massive points (representing the oxygen atoms) separated by a distance of 1.21 x 10-10 m. The origin of the Cartesian coordinate system is placed in the molccular centre of mass and the a-axis is aligned along...
Looking for assistance on the problem. I have come to a few answers
but would like a second opinion. Thanks!
In interstellar space there are clouds of cold gas (at about 20 K) called dark nebula because they block the light from stars behind them from reaching Earth. A typical diameter fro a dark nebula is about 20 light years and has a density of monatomic hydrogen of 50 hydrogen atoms per cubic centimeter. a.) Estimate the mean free path...
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