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8.7 Percent Composition 24. The first inert gas compound to be synthesized was XePtF6 (440.37 g/mol...
Xenon hexafluoride was one of the first noble gas compound synthesized. The solid reacts rapidly with...
Xenon hexafluoride was one of the first noble gas compound synthesized. The solid reacts rapidly with the silicone dioxide and glass or quartz containers to form liquid XeOF4 and gaseous silicone tetrafluoride. What is the pressure in a 1.00 L container at 25°C after 1.86 g xenon hexafluoride react? (Assume that silicone tetrafluoride is the only gas present and that it occupies the entire volume)
Xenon hexafluoride was one of the first noble gas compounds synthesized. The solid reacts rapidly with...
Xenon hexafluoride was one of the first noble gas compounds synthesized. The solid reacts rapidly with the silicon dioxide in glass or quartz containers to form liquid XeOF4and gaseous silicon tetrafluoride. What is the pressure in a 1.00−L container at 25 ° C after 2.73 g of xenon hexafluoride reacts? (Assume that silicon tetrafluoride is the only gas present and that it occupies the entire volume.
1. Determine the composition, in at and 24 wt% carbon. Ti 47.88 g/mol, Cs]2 g/mol. omic...
1. Determine the composition, in at and 24 wt% carbon. Ti 47.88 g/mol, Cs]2 g/mol. omic percent, of an alloy that consists of 76 wt% titanium
1.- A gas produced in the exhaust of a car has the following composition in% mol....
1.- A gas produced in the exhaust of a car has the following composition in% mol. Determine .a) The density of the gas mixture at 24 °C and 585 mm Hg .b) what are the partial pressures of each gas in the gas mixture. .Put the results in the following table Xi = %/100 M x(g/mol) Gas M (g/mol) CO2 CO O2 N2 NO2 H2O % mol 2.82 23.24 0.66 68.86 2.34 2.08
15. The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0....
15. The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound? A) C1oHO B) C9H10 C) C16H30, D) C20H30, E) C13H4O2 16. The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% , 6.35% H, and 55.83% Cl by mass. What is the empirical formula of this compound? A) CH.CIB) CH,CIC) CH.Cl? D)...
16. You synthesized 3.204 g of Ni(NH3)nCl2. The mass percent of NH3 and Ni2+ in the...
16. You synthesized 3.204 g of Ni(NH3)nCl2. The mass percent of NH3 and Ni2+ in the synthesized Ni(NH3)nCl2 were 44.1% and 25.3%, respectively. Molar mass of Ni2+ , NH3 and Cl2 are 58.69 g/mol, 17.04 g/mol, and 70.90 g/mol, respectively. a) (1 pts) Calculate the mass percent of Cl2. b) (1 pts) Calculate the masses of Ni2+ , NH3 and Cl2. c) (1 pts) Calculate the number of moles of Ni2+ . d) (1 pts) Calculate the number of moles...
A gas mixture consisting of 3.2 g of methane and 2.8 g dinitrogen was prepared at...
A gas mixture consisting of 3.2 g of methane and 2.8 g dinitrogen was prepared at standard conditions. Percentage composition of this gas mixture was: A. 53.3 wt.% CH4 and 46.7 wt.% N2 B. 60 vol.% CH4 and 40 vol.% N2 C. 60 mol.% CH4 and 40 mol.% N2 D. 66.7% of CH4 molecules and 33.3% of N2 molecules E. A and D are correct ^answer is E but not sure how to find the percent composition of molecules. Thanks
Consider the following samples of gas: sample composition pressure temperature sample composition pressure temperature 1.3 mol...
Consider the following samples of gas: sample composition pressure temperature sample composition pressure temperature 1.3 mol Ne (g1.5 atm 96, °C 2.3 mol Ar (g) 2.1 atm 220, °C D A 2.3 mol Ar (g 2.1 mol Ar (g 2.1 atm 96, °C 209, C 1.5 atm E B 1.7 mol Kr(g) 1.5 atm 1.3 mol Ar (g) 2.1 atm 96. °C 183, °C C Select the set of graphs below that show the distributions of the speed of the...
B. (3 pts) The equilibrium vapor pressure (Pº) of ethyl acetate (MW = 88.11 g/mol) and...
B. (3 pts) The equilibrium vapor pressure (Pº) of ethyl acetate (MW = 88.11 g/mol) and butyl acetate (MW = 116.16 g/mol) at 25 °C are 121 Torr and 30.5 Torr, respectively. Determine the molar percent composition (mol %) of each component in the vapor above an ideal liquid solution containing 6.00 g of ethyl acetate and 18.0 g of butyl acetate. c. (3 pts) A mixture of methyl propanoate (1), 3-methoxy-1-propanol (2) and butyric acid (3) were detected in...
(6) 8. A compound with a molecular mass of 202.23 g/mol was found to have the...
(6) 8. A compound with a molecular mass of 202.23 g/mol was found to have the following mass percent composition: 95.02% carbon, and 4.98% hydrogen. Determine its: a. empirical formula b. molecular formula
1. Determine the composition, in at and 24 wt% carbon. Ti 47.88 g/mol, Cs]2 g/mol. omic percent, of an alloy that consists of 76 wt% titanium
1.- A gas produced in the exhaust of a car has the following composition in% mol. Determine .a) The density of the gas mixture at 24 °C and 585 mm Hg .b) what are the partial pressures of each gas in the gas mixture. .Put the results in the following table Xi = %/100 M x(g/mol) Gas M (g/mol) CO2 CO O2 N2 NO2 H2O % mol 2.82 23.24 0.66 68.86 2.34 2.08
15. The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound? A) C1oHO B) C9H10 C) C16H30, D) C20H30, E) C13H4O2 16. The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% , 6.35% H, and 55.83% Cl by mass. What is the empirical formula of this compound? A) CH.CIB) CH,CIC) CH.Cl? D)...
Consider the following samples of gas: sample composition pressure temperature sample composition pressure temperature 1.3 mol Ne (g1.5 atm 96, °C 2.3 mol Ar (g) 2.1 atm 220, °C D A 2.3 mol Ar (g 2.1 mol Ar (g 2.1 atm 96, °C 209, C 1.5 atm E B 1.7 mol Kr(g) 1.5 atm 1.3 mol Ar (g) 2.1 atm 96. °C 183, °C C Select the set of graphs below that show the distributions of the speed of the...
B. (3 pts) The equilibrium vapor pressure (Pº) of ethyl acetate (MW = 88.11 g/mol) and butyl acetate (MW = 116.16 g/mol) at 25 °C are 121 Torr and 30.5 Torr, respectively. Determine the molar percent composition (mol %) of each component in the vapor above an ideal liquid solution containing 6.00 g of ethyl acetate and 18.0 g of butyl acetate. c. (3 pts) A mixture of methyl propanoate (1), 3-methoxy-1-propanol (2) and butyric acid (3) were detected in...
(6) 8. A compound with a molecular mass of 202.23 g/mol was found to have the following mass percent composition: 95.02% carbon, and 4.98% hydrogen. Determine its: a. empirical formula b. molecular formula
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