Author Question: The pH of a solution with H3O+ = 5.9 10-3 M, to the correct number of significant figures, is ... (Read 164 times)

sammy · **on:** Aug 27, 2018

The pH of a solution with H3O+ = 5.9 10-3 M, to the correct number of significant figures, is ________.

A) 5.9 10-3
B) 2.2
C) 2.23
D) 1.01
E) 2.229

Question 2

The correct order for filling orbitals with electrons is ________.

A) 1s, 2s, 2p, 3s, 3d, 4s, 3p
B) 1s, 2s, 3s, 4s, 2p, 3p, 3d
C) 1s, 2s, 2p, 3s, 3p, 4s, 3d
D) 1s, 2s, 3d, 2p, 3p, 3s, 4s