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Question

Could you please answer these questions

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Complete this table of values for four aqueous solutions at 25 degree C. Calculate the pH and the pOH of an aqueous solution that is 0.025 M in HCI(aq) and 0.055 M in HBr(aq) at 25 degree C. Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.250 M phosphoric acid solution. Given that Ka for HIO is 3.2 * 10-11 at 25 degree C, what is the value of Kb for IO- at 25 degree C? Given that Kb for C6H5NH2 is 1.7 x 10-9 at 25 degree C, what is the value of K* for C6H5NH3* at 25 degree C? Calculate the concentrations of all species in a 1.40 M Naso3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka 1 = 1.4* 10"2 and Ka2 = 6.3* 10-8. Identify the Lewis acid and Lewis base in each of the following reactions.

Explanation / Answer

so here is the rest of number 3:

h3po4 M=.2117

H2po4 M = .03827

Hpo4 M = 6.17x10^-8

PO4= 7.63x10^-19

Ph is 1.42

Oh is 12.58

H = .03827

number 5)

Na= 2.8

OH = 1.4

HSO3= 1.3997

SO3= 2.97x10^-4

SO2 = 2.029x10^-13

H= 2.97x10^-4

H2SO4= unsure how to calculate this... sorry i tried my best!

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