28. Solving a chemistry problem

  • USD
    • RUB
    • USD
    • EUR
Affiliates: 0,01 $how to earn
i agree with "Terms for Customers"
Uploaded: 21.04.2023
Content: 16в.rar 51,91 kB

Product description


16th century The analyzed sample of Mohr´s salt weighing 0.3887 g was dissolved in dilute sulfuric acid, after which the potentiometric titration of iron(II) was carried out with a standard solution of cerium(IV) sulfate with a molar equivalent concentration of 0.04955 mol/l and the following results were obtained (V is the volume of added titrant, E is the EMF of the circuit):
V, ml 14.00 18.00 19.00 19.80 20.00 20.20 21.00 22.00 26.00
E, mV 736 780 810 877 1098 1320 1393 1424 1469
Calculate the mass fraction (%) of iron(II) in the analyzed sample, using the following method to determine the equivalence point (TE).
Which electrodes (platinum, calomel, silver chloride, glass) can be used as an indicator electrode, and which ones can be used as a reference electrode for this titration?
c) Graphical (Gran´s method) - along the titration curve * in the coordinates ΔV / ΔE-V

Additional information

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

Feedback

0
Period
1 month 3 months 12 months
0 0 0
0 0 0
In order to counter copyright infringement and property rights, we ask you to immediately inform us at support@plati.market the fact of such violations and to provide us with reliable information confirming your copyrights or rights of ownership. Email must contain your contact information (name, phone number, etc.)

This website uses cookies to provide a more effective user experience. See our Cookie policy for details.