Calculate the [h3o') in a solution that has a ph of 9.11 a) 7.8 x 1010 b) 1.3 x 10-5 c) 9.1 x 10- d) 0.96 e) 0.69 11. which of the following is a strong acid? a) hcio2 b) hf c) hbo d) h2so3 e) h2so4 12. which of the following aqueous salt solutions would you expect to be neutral, le ph = 7 a) nacn(aq) b) nh br(aq) c) nacn(aq) d) kbr(aq) e) ca(no2)2(aq)

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.