139. Solving a chemistry problem
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139. Solving a chemistry problem
95. From a sample of the alloy weighing 0.60 g, titanium was transferred to TiO2 and titrated with a 0.1N solution of CrCl2: TiO2 Cr2 2H = Ti3 Cr3 H2O
Calculate the percentage of titanium in the alloy from the following potentiometric titration results - Table 31.
Table 31
V, ml (CrCl2) 2.0 10.0 18.0 19.8 20.0 20.2 22.0
E, mV 159 100 41 -18 -155 -292 -351
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