If one solution has 100 times as many hydrogen ions as another solution, what is the difference, in ph units between the two solution?

Use the fact that pH = log { 1 / [H+] }. Call x the concentration of hydrogen ions of one solution and 100x the concentration of hydrogen ions of the other solution. The pH of the solution with hydrogen concentration x is pH1 = log {1 / x}. The pH of the solution with hydrogen concentration 100x is pH2 = log {1 / 100x}. Now calculate pH2 - pH1 = log {1/x} - log {1 / 100x}. When you apply the logarithms properties you get pH2 - pH1 = log {1/x} - log {1/x} - log {1/100} = - (-2) = 2. So the answer is that if one solutions has 100 times as many hydrogen ions as another solution, the difference in pH units between the two solutions is 2.

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

It’s b. mass i searched it up