Asapp

determine the number of moles of air present in 1.35 l at 750 torr and 17.0°c. what is the number of moles present?

Answer : The number of moles of air present is, 0.055 mole

Solution :

Using ideal gas equation :

where,

P = pressure of the gas = 750 torr = 0.98 atm      (1 atm = 760 torr)

V = volume of the gas = 1.35 L

T = temperature of the gas =

R = gas constant = 0.0821 Latm/moleK

n = number of moles of air = ?

Now put all the given values in this formula, we get the number of moles of air present.

Therefore, the number of moles of air present is, 0.055 mole

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