The solubility of O2 in water is 5.85 x 10-4 M at 25 oC and 0.45 atm of O2 pressure . What will the solubility be when the partial pressure of O2 is four times the original pressure

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.

The net force is 100

A. ​it generates energy from carbohydrates.b. it requires activation by oxygen.​c. ​it is used by cells to dispose of excess electrons