Question 15 of 20 Avail Due Point Grad Desc Polici You You Y

Question 15 of 20 Avail Due Point Grad Desc Polici You You You The 100 Map Sapling Learning 100 100 If the Kb of a weak base is 4.0 x106, what is the pH of a 0.23 M solution of this base? Number 100 pH = 100 eTe He 0 Owe 100

XOH + H2O <===> OH^-(aq) + X⁺ (aq) Kb of XOH = 4.0 x 10^-6

Kb = [OH^-][X⁺] / [XOH]

[OH^-] = [X⁺]

Kb = [OH^-]² / [XOH]

[OH^-]² = Kb x [XOH] => 4.0 x 10^-6 x 0.23 => 9.2 x 10^-7

[OH^-] = 9.59 x 10^-4 M

pOH = - log (9.59 x 10^-4 ) => 3.02

pH = 14 - 3.02 => 10.98

Answer = 10.98

Question 15 of 20 Avail Due Point Grad Desc Polici You You You The 100 Map Sapling Learning 100 100 If the Kb of a weak base is 4.0 x106, what is the pH of a 0

Question 15 of 20 Avail Due Point Grad Desc Polici You You Y

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