7. 3 g of a strong basic anion exchanger in OH form was added to 150 ml of H2SO4 solution with a concentration of 0.110 mol/l. After establishing the ion exchange equilibrium, 50 ml of solution was taken, which required 22 ml of KOH solution with a concentration of 0.05 mol/l to neutralize it. Calculate the total exchange capacity of the anion exchanger.

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