140. Solving a chemistry problem
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Product description
- From a sample of ore weighing 0.80 g, uranium was converted into U4 and titrated with 0.01N KMnO4 solution:
2MnO4⎯ 5U4 2H2O = 2Mn2 5UO2 2 4H
Calculate the percentage of uranium in the ore from the following potentiometric titration results - Table 28.
Table 28
V, ml
(KMnO4) 2.0 10.0 18.0 19.8 20.0 20.2 22.0
E, mV 301 330 359 389 1173 1486 1498
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.