Consider the titration of 90.0 mL of 0.148 M Ba(OH)2 by 0.592 M HCl. Calculate the pH of the resulting solution after the following volumes of HCl have been added. Answer with the appropriate number of significant figures. (a) 0.0 mL
(b) 10.0 mL
(c) 27.0 mL
(d) 45.0 mL
(e) 90.0 mL

You need to divided twenty four by a dozen them by the temperature it is getting cook by

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.