Question

At 21 °C and 735 torr pressure, what will be the volume of 84 mol of SO2 gas? (Enter your answer in scientific notation.)

______x10 ______L SO2

Answer #1

From the ideal gas equation

P x V = n x R x T

Where P = pressure in Pascal

V = volume in m^{3}

n = number of moles

R = gas constant in J/mol-K

T = temperature in Kelvin

Given that

P = 735 torr = (735 torr) x (1.01325 x 10^{5} Pa / 760
torr)

P = 97991.94 Pa

T = 21°C = 21 + 273.15 = 294.15 K

n = 84 moles

Putting the values in the equation

97991.94 Pa x V = 84 mol x 8.314 J/mol-K x 294.15 K

97991.94 Pa x V = 205427.3004 J

V = 2.09637 m^{3}

V =( 2.09637 m^{3}) x (1000 L / 1 m^{3})

V = 2.09637 x 10^{3} L SO2

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A fixed quantity of gas at 21 ∘C exhibits a pressure of 756 torr
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Calculate the volume the gas will occupy if the pressure is
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A
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a.) calculate the volume the gas will occupy if the pressure
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- Express answers in liters to 3 sig figs.

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The Kb value for NH3 is 1.8×10−5.
Assuming all the NH3 dissolves and that the volume of the
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Assuming all the NH3 dissolves and that the volume of the
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Express your answer numerically to two decimal places.
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(Enter your answer to at least 2 decimal places.) _____ atm

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Volume pressure= .785 liters
Unknown 1 = 1884 torr
Unknown 2 = 847 torr
Now that the volume of the pressure vessel is known, the number
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Enter the corrected gas pressure after subtracting the water vapor
pressure for unknowns 1 and 2
Unknown 1 corrected pressure?
Unknown 2 corrected pressure?
Use the ideal gas equation and the volume obtained above to
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