How many moles of a gas sample are in 2.5 l container at 373 k and 203 kpa?

Explanation:

The given data is as follows.

    P = 203 k Pa,           V = 2.5 L

    T = 373 K,                 n = ?

     R = 0.0821 atm L/ K mol

Convert pressure from k Pa to atm as follows.

        = 2.00 atm

Now, using the ideal gas equation we will calculate the number of moles as follows.

                        PV = nRT

                           n =

                              =

                              = mol

                              = 0.163 mol

Thus, we can conclude that number of moles in the given gas sample is 0.163 mol.

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