140. Solving a chemistry problem
Seller: Derkach
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Product description
- A solution was transferred from a sample of steel, weighing 2.00 g, and titrated with a 0.1N solution of iron (II) sulfate:
VO2 + + Fe2 + + 2H + = VO2 + + Fe3 + + H2O
Calculate the percentage of vanadium in the alloy from the following potentiometric titration results - Table 30.
Table 30
V, ml
(FeSO4) 2.0 10.0 18.0 19.8 20.0 20.2 22.0
E, mV 1058 999 940 901 885 841 830
Additional information
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.