A 10L container has 150g of 02 A)What is the pressure if the temperature is 24c

Question

A 10L container has 150g of 02 A)What is the pressure if the temperature is 24c
B)What would be the pressure be if the temperature increases to 100c
C) what mass of oxygen gas in units of grams will occupy a volumn of 5.0L at a temperature of 25c and a pressure of 1.5 arm (02=32.0g/mole) A 10L container has 150g of 02 A)What is the pressure if the temperature is 24c
B)What would be the pressure be if the temperature increases to 100c
C) what mass of oxygen gas in units of grams will occupy a volumn of 5.0L at a temperature of 25c and a pressure of 1.5 arm (02=32.0g/mole) A)What is the pressure if the temperature is 24c
B)What would be the pressure be if the temperature increases to 100c
C) what mass of oxygen gas in units of grams will occupy a volumn of 5.0L at a temperature of 25c and a pressure of 1.5 arm (02=32.0g/mole)

Explanation / Answer

V = 10 L

m = 150 g of O2

MW O2 = 32

mol = mass/MW = 150/32 = 4.6875 mol of O2

a) find P if T = 24°C

PV = nRT

P = nRT/V

P = (4.6875 )(0.082)(24+273) / 10 = 11.42 atm

b)

P when T = 100 C or 373 K

PV = nRT

P = nRT/V

P = (4.6875 )(0.082)(373) / 10 = 14.34 atm

c)

mass of O2 when

V = 5 L

T = 25 c or 298 K

P = 1.5 atm

Mol O2 = mass/MW

solve for n

PV = nRT

n = PV/(RT)

n = 1.5 atm * 5 L /(0.082*298) = 0.3069 mol

mass = mol*MW = 0.3069*32 = 9.82 grams of O2

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