26. Solving a chemistry problem
34. We carried out coulometric titration of the arsenite ion AsO32- in a weakly alkaline test solution with electrogenerated iodine I2 at a constant current w = 2.5 * 10-3 mA in the presence of an indicator - starch. During titration the reaction occurs:
AsO5 I2 H2)=AsO4 2I 2H. The solution turned blue 6 min 26 s after the start of titration. Calculate the mass of arsenic (III) in the analyzed solution.
If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)
No customer reviews yet.