A sample of a gas exerts a pressure of 8.2 atm when confined in a 2.93 dm<sup>3</sup> container at 20°C. The number of moles of gas in the sample is?(R = 0.082 litre atm / deg mole)

A sample of a gas exerts a pressure of 8.2 atm when confined in a 2.93 dm3 container at 20°C. The number of moles of gas in the sample is? (R = 0.082 litre atm / deg mole)

A sample of a gas exerts a pressure of 8.2 atm when confined in a 2.93 dm³ container at 20°C. The number of moles of gas in the sample is?

(R = 0.082 litre atm / deg mole)

The correct answer is A. 1.00

PV = nRT

2.93 x 8.2 = 0.082 x 293 xn

â´ n = (2.93 x8.2) / (0.082 x 293)

n = 1