3. Some of the reagents used in this lab are easily...

Name: 3. Some of the reagents used in this lab are easily confused: such as persulfate (S2O82-) and thiosulfate (S2O32-). A student inadvertently switched these reagents, adding the persulfate to beaker A and thiosulfate to beaker B. How would this affect the results? What would the student observe with respect to the mixture in beaker A?
Uploaded: 2022-04-04T17:46:43-08:00
Duration: 3 min 27 s
Channel: Shyam P
Description: 3. Some of the reagents used in this lab are easily confused: such as persulfate (S2O82-) and thiosulfate (S2O32-). A student inadvertently switched these reagents, adding the persulfate to beaker A and thiosulfate to beaker B. How would this affect the results? What would the student observe with respect to the mixture in beaker A?

3. Some of the reagents used in this lab are easily confused: such as persulfate (S2O82-) and thiosulfate (S2O32-). A student inadvertently switched these reagents, adding the persulfate to beaker A and thiosulfate to beaker B. How would this affect the results? What would the student observe with respect to the mixture in beaker A?

Apply Students conducted a lab to investigate limiting and excess reactants. The students added different volumes of sodium phosphate solution $\left(\mathrm{Na}_{3} \mathrm{PO}_{4}\right)$ to a beaker. They then added a constant volume of cobalt(II) nitrate solution ($\mathrm{Co}\left(\mathrm{NO}_{3}\right)_{2} )$ stirred the contents, and allowed the beakers to sit overnight. The next day, each beaker had a purple precipitate at the bottom. The students decanted the supernatant from each beaker, divided it into two samples, and added one drop of sodium phosphate solution to one sample and one drop of cobalt (II) nitrate solution to the second sample. Their results are shown in Table $11.5 .$ a. Write a balanced chemical equation for the reaction. b. Based on the results, identify the limiting reactant and the excess reactant for each trial.

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