3.0 atm
what is the volume of a balloon containing 50.0 moles of O2 gas at a pressure of 15.0 atm at 28 degrees
Moles of O2=2.5/32=0.078125 Moles of He=6.4/4=1.6 Mole fraction of O2=0.078125/(0.078125+1.6)=0.046555 Partial pressure of O2=0.046555 x 8.25=0.384atm
You will be using the equation for the ideal gas law: PV=nRT, where P=pressure in atm, V=volume in liters, n=moles, R=ideal gas constant (0.0821) and T=temperature in kelvins, and along the way, you must convert mL to L and Celsius to kelvins. So, plug it all in: 12atm(0.351L) = n(0.0821)(298k). The answer is 0.17mol O2, which is about 2.7g O2.
(PV / nT )a = (PV / nT )b where the a and represent different conditions At STP, 1 mole of a gas occupies 22.4 L --- these are conditions b conditions a are the 7.5 atm, 294 K, but the 10 Kg must be converted to moles (n). 1 mole O2 = 32 g, so 10 kg x (1000 g / 1 kg) x (1 mole / 32 g) = 312.5 moles (7.5 atm)x(V) / [(312.5 moles)(294 K)] = (1 atm)(22.4L)/[(1 mole)(273 K)] Rearrange and solve for V V = (1 atm)(22.4L)/[(1 mole)(273 K)] x (312.5 moles)(294 K)/(7.5 atm) V = 1005.1 Liters
3.0 atm
7.88 atm
Use.PV = nRTTo get moles O2. ( 20.0o C = 293.15 Kelvin )(1.00 atm)(1120.0 L) = (X moles)(0.08206 L*atm/mol*K)(293.15 K)Moles = 1120.0/24.56= 45.60 moles O2-----------------------------------now,45.60 moles O2 (1 mole KO2/2 mole O2)(71.1 grams/1 mole KO2)= 1621 grams potassium oxide required=============================
I assume you mean the decomposition reaction used to produce O2 in lab. 2KCLO3 -> 2KCl + 3O2 find moles O2 55.2 grams KClO3 (1 mole KCLO3/122.55 grams)(3 mole O2/2 mole KClO3) = 0.67564 moles O2 Now, I use the ideal gas law PV = nRT (1 atm)(V) = (0.67564 mol)(0.08206 L*atm/mol*K)(298.15 K) Volume O2 = 16.53 Liters which is 16530 milliliters ( less significant figures )
what is the volume of a balloon containing 50.0 moles of O2 gas at a pressure of 15.0 atm at 28 degrees
The number of moles is 1,5.
Moles of O2=2.5/32=0.078125 Moles of He=6.4/4=1.6 Mole fraction of O2=0.078125/(0.078125+1.6)=0.046555 Partial pressure of O2=0.046555 x 8.25=0.384atm
more info::Suppose 1.20 ATM of CH4(g), 2.03 ATM of C2H6(g), and 15.69 ATM of O2(g) are placed in a flask at a given temperature. The reactions are given below.CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g) KP = 1.0 1042 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g) KP = 1.0 108Calculate the equilibrium pressures of all gases.PCH4Enter a number with the correct number of significant figures.1atmPC2H6Enter a number with the correct number of significant figures.2atm
You will be using the equation for the ideal gas law: PV=nRT, where P=pressure in atm, V=volume in liters, n=moles, R=ideal gas constant (0.0821) and T=temperature in kelvins, and along the way, you must convert mL to L and Celsius to kelvins. So, plug it all in: 12atm(0.351L) = n(0.0821)(298k). The answer is 0.17mol O2, which is about 2.7g O2.
Let us do some conversions first, then use the ideal gas law. PV = nRT 1 Bar = 1.01325 atmospheres 80 Bar (1.01325 ATM/1 Bar) = 81.06 ATM 20 C = 293.15 K new R = 0.08206 L*ATM/mol*K (81.06 ATM)(100 L) = nI0.08206 L*ATM/mol*K)(293.15 K) moles O2 = 337 moles O2 * 32 grams = 10784 grams about 24 pounds of oxygen
2CO + O2 -> 2CO2 find moles O2 gas 277 grams carbon monoxide (1 mole CO/28.01 grams)(1 mole O2/2 mole CO) 4.9447 moles O2 Now, since I am lazy, I use PV = nRT V = nRT/P V = (4.9447 moles O2)(0.08206 L*atm/mol*K)(298.15 K)/(1 atm) V = 120.978 Liters of oxygen, or, in sigi figi; 121 Liters of oxygen needed for this combustion
(PV / nT )a = (PV / nT )b where the a and represent different conditions At STP, 1 mole of a gas occupies 22.4 L --- these are conditions b conditions a are the 7.5 atm, 294 K, but the 10 Kg must be converted to moles (n). 1 mole O2 = 32 g, so 10 kg x (1000 g / 1 kg) x (1 mole / 32 g) = 312.5 moles (7.5 atm)x(V) / [(312.5 moles)(294 K)] = (1 atm)(22.4L)/[(1 mole)(273 K)] Rearrange and solve for V V = (1 atm)(22.4L)/[(1 mole)(273 K)] x (312.5 moles)(294 K)/(7.5 atm) V = 1005.1 Liters