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Determining temperature of air given pressure and volume

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How do I determine the temperature, in K, of 5 kg of air at a pressure of 0.3 MPa and a volume of 2.2 m^3?

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https://brainmass.com/engineering/molecular-engineering/determining-temperature-of-air-given-pressure-and-volume-45724

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If air is 78.08% N2 (with molecular weight 28), 20.95% O2 (32) and .93% Ar ...

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This solution provides the equation needed to solve the provided question related to determining air temperature.

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