When a sample of gas was placed in a sealed container with a volume of 3.35 L and heated to 75°C, the gas vaporized and the resulting pressure inside the container was 17atm. How
many moles of the gas were present?. Single line text.

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.