11. When titrating a BaCl2 solution with 0.22 N H2SO4, the following data were obtained on the scale of a high-frequency instrument:
V(H2SO4), cm3 2 4 6 8 10
x*103 (Ohm-1) 62.0 43.0 29.5 22.0 19.2
Plot a titration graph and determine the BaCl2 content (g) in the test solution.

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